More elbow dropping nonsense

Elbow Dropping is for Winners!

JoeyA...Me arrogant? (That's what some people say about you Scott). Ha...read your own posts. The reason we teach what we teach is because it's EASIER to develop an accurate and repeatable stroke. Take the top 200 pros (that should cover about anybody out there)...let's say they all drop their elbow on every shot (they don't). If you looked at each one's "process" it would be different from the next guy, but works for that individual, due to persistance and longevity. Instead of trying to copy what some pro does, the average person (hmmm), seeking to increase the consistency of their own process, is much better off finding something that they develop themselves, and commit to practicing long enough for it to become a habit, and replace what they used to do. This applies to appx. 39,995,000 out of the appx 40 million players just here in the U.S. The odd 5,000 players who have already developed what they like, should continue doing just that. Even so, we've had many top level champion players CHOOSE to develop a pendulum stroke with NO elbow drop. Apparently they must know something too.

Scott Lee
www.poolknowledge.com

Players who want to improve their game won't by stymied by cookie cutting instruction and will continue to search out new techniques and ways to enhance their performance. I'm not saying there's anything wrong with teaching people to reduce movement while shooting. It is probably the easiest way to teach and the easiest way to learn.

The elbow dropping is probably something that someone started doing because it worked for them and now you see many professional players dropping their elbow. Some of us know it isn't done by accident.

What you think of as a bad habit, unnecessary and complicated, I see as interesting, intriguing and beneficial at least for the majority of the pro players I see playing.

JoeyA
 
I dunno if this is totally useless to point out, but some of the harshness and arguing here seems silly because it seems like really all just discussing different degrees of the same stroke.

What we're calling "no" elbow drop is usually really just a tiny bit, like an inch or two. Nobody literally holds their elbow utterly still, and if they do it's like they must be focused really intently on that, which would be unnatural and probably bring focus away from the shot.

And a lot of the pros who drop their elbow? Like 3 or 4 inches, and after contact. Yeah it's technically elbow drop, but their stroke has much more in common with the super-orthodox methods taught by guys like Scott than it does with the "I've hit 5 million balls and made it work for me" method used by Keith or Busty.

There's really no reason for anyone to say so-and-so is full of shìt and look at how this guy hits it. Can you imagine this kind of argument happening over whether 6 inches of follow through is better than 9? But in sense that's kind of what we're doing here.
 
I understand what you mean when you say that the hand is up at the end of the pendulm. The tip of the stick goes down if the bridge is the fulcrum after contact. if the bridge is not the fulcrum the stick continues to rise.

With the closed bridge the stick is held down. with the open bridge the stick will rise -- will it not?

In this sense the closed bridge is the better bridge in so far as it contributes to "better" follow through. None the less the pressure will be on the upper finger in the closed bridge because the stick is rising. So this appears to be a reasonable argument for a closed bridge to improve follow through.

This is getting complicated.

Joe,

I think you have outlined one of many possibilities. I'm wondering, how tightly are you gripping the cue? I think if your wrist was locked and you had somewhat of a death grip on the cue, you might get your tip to go up using a pendulum stroke and perhaps an open bridge. However, if I use an open bridge with a pendulum stroke, the cue is basically resting on my bridge. The point at which this happens acts like a fulcrum. Because of the way I grip the cue (large hands and very light grip-the cue just sits on my fingers), I can complete the pendulum motion without the cue coming away from my bridge hand. It is hard to imagine doing it any other way. This necessarily results in a downward motion of the tip after the forearm crosses the perpendicular position. Are you suggesting that this wouldn't happen because you are lifting the cue up in the air at the end of the stroke?
Curious,

KMRUNOUT
 
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JoeyA...Me arrogant? Ha...read your own posts. The reason we teach what we teach is because it's EASIER to develop an accurate and repeatable stroke. Take the top 200 pros (that should cover about anybody out there)...let's say they all drop their elbow on every shot (they don't). If you looked at each one's "process" it would be different from the next guy, but works for that individual, due to persistance and longevity. Instead of trying to copy what some pro does, the average person, seeking to increase the consistency of their own process, is much better off finding something that they develop themselves, and commit to practicing long enough for it to become a habit, and replace what they used to do. This applies to appx. 39,995,000 out of the appx 40 million players just here in the U.S. The odd 5,000 players who have already developed what they like, should continue doing just that. Even so, we've had many top level champion players CHOOSE to develop a pendulum stroke with NO elbow drop. Apparently they must know something too.

Scott Lee
www.poolknowledge.com

With all due respect to both of you, I am certain that these conversations do not *need* to devolve into pissing contests. Generally I notice that people are sensitive and defensive. All people. How they show this varies greatly from person to person. No one likes to be wrong, and most people derive a lot of security for their psyche from the comfort of what they believe they know. To paraphrase Socrates, "maybe I am the wisest man in the world, if only for the fact that I don't claim to know that which I don't know."

The fact is, this topic, from a scientific perspective, is really in it's infancy. There is very little in the way of scientific data and analysis in much of anything in pool. People like Dr. Dave and Bob Jewett are certainly working to change this, and deserve props. I think we might all try to keep minds that are a little more open. Perhaps we could not be so quick to defend our own position before fully exploring the position of the other guy. It really is a great way to learn new things, and learn more about what we already know.

Here are some assumptions that are not exactly "scientific" (at least as expressed in this thread) that could use a little more exploration and definition:

"All the top pros use the elbow drop." Ok, I mean, really all of them? Or is it only some? I have certainly watched a LOT of pros play pool. My experience is that the vast majority drop their elbows. I would say over 95%. I can think of only one or two who clearly don't. I watched Ignacio Chavez playing at Turning Stone one time. I only watched for a little while, but it seemed his elbow was really pinned. However, a year or so later, I watched him again on a video and it seemed he was dropping his elbow. Here's the point: let's avoid saying things like "all pros do or don't do this or that." We were provided with a video of Mike Sigel showing a pronounced elbow drop. Well who doesn't do it? What pro really pins their elbow and where is the video to show this?

"it's EASIER to develop an accurate and repeatable stroke [by not dropping your elbow]." This type of statement is conjecture. Without any data or experimental evidence, how do we *know* its easier? Because it seems like it would be? I think before a claim like this can be made, there needs to be a study done in which a large number of random people with no previous pool experience are taught how to play pool. One group would be taught the elbow drop, and the other group would be taught not to drop the elbow. At the end, the relative performance gains would be compared. Has something like this already been done? And let me just preempt the idea that "I've taught thousands of students...etc." by pointing out that this is not scientific. This is an observation severely biased by the instructors own experience of those situations. Remember that we all have personal biases, and the perception of a person's progress will be highly colored by the desire to validate one's own point of view. This isn't bad or wrong-we are all in this boat. However, it is also not scientific, and doesn't contribute as much to a body of information that is "true" for everyone.

The number one thing we can all say to ourselves, in my humble opinion, in any sort of debate like this is "I might be wrong". This is something that an extremely small percentage of people are willing or able to do.

Anyway, just throwing out some food for thought. I would love to hear from the professional instructors (not singling you out Scott, however I think your opinion is extremely valuable!) about *why* they believe it is easier to learn the no-elbow-drop method. I don't think the explanation is adequate that "there are less moving parts, therefore it is less complex, therefore it is easier to repeat". By that logic, the typical golf swing would be a total disaster. Look how many moving parts there are there!! Same with a tennis swing. Same with all kinds of motions involving any sort of swing or stroke. I think anyone who has played golf would agree that the typical professional swing involves a coordinated motion of hips, legs, waist, shoulders, arms, etc., and that this is the *best* way to do it, whether novice or pro. In other words, the way the pros do it in golf is the *right* way to do it. Why would it be different in pool? Let's face it, the motions involved in pool are far easier than in golf. Even Bustamante has far less going on in his stroke than any golfer has in their swing. So the question is: what evidence is there that it is easier to learn one method or the other with respect to the elbow drop? Also, what evidence is there to suggest that one method or the other makes certain shots easier? Obviously this will have a highly personal and subjective answer, but is there any consistent facts for us all?

BTW, one thing I'm not sure if anyone mentioned. For me, the elbow drop happened through research of my own body and motions. I spent a LONG time analyzing my stroke with video, and testing all kinds of things about it. For me, it turned out that the elbow drop seemed to be a better solution particularly with respect to power draw shots. I think the elbow drop stroke, when done correctly, can increase the amount of time that the tip is at the height it needs to be! In a nutshell, that is the main factor that lead to my adopting that method. As others have said, the bicep contraction coupled with the elbow drop can net out to a tip that moves parallel to the table bed. The main advantage to this is that without it moving up and down, there is a greater chance that I will strike the cueball where intended. Thus for me, there is an advantage to the elbow drop method over the pinned elbow method. In the thousands of pool shots I make, I never really find myself saying "well, that shot went wrong because I hit the cueball too high or too low." I will miss, hit it too hard or too soft, but VERY rarely hit the cueball in the wrong spot on the vertical axis.

Anyway, that's it for now. I would really love to hear some input on the above questions.

Thanks everyone,

KMRUNOUT
 
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Joe,

I think you have outlined one of many possibilities. I'm wondering, how tightly are you gripping the cue? I think if your wrist was locked and you had somewhat of a death grip on the cue, you might get your tip to go up using a pendulum stroke and perhaps an open bridge. However, if I use an open bridge with a pendulum stroke, the cue is basically resting on my bridge. The point at which this happens acts like a fulcrum. Because of the way I grip the cue (large hands and very light grip-the cue just sits on my fingers), I can complete the pendulum motion without the cue coming away from my bridge hand. It is hard to imagine doing it any other way. This necessarily results in a downward motion of the tip after the forearm crosses the perpendicular position. Are you suggesting that this wouldn't happen because you are lifting the cue up in the air at the end of the stroke?
Curious,

KMRUNOUT

Turns out I was thinking and not playing. It seems that by definition the stick has to rise at the end of a pendulum stroke which is on the up swing. This is true if the rear of the stick is held firmly in the hand. That is what I thought was happening !

When I went to the table and studied the back hand during the pendulum stroke it turns out that the grip naturally changes to allow the stick to stay down. Apparently, the mechanics of a pendulum stroke includes some sort of hand release or altered grip to keep the stick on the table.

Consider for a moment if one were to use two screws through a piece of wood to hold the cue stick. This piece of wood (representing the hand and the forearm) is attached to what would be the elbow. In this abstract system the stick would rise as it proceeded through the arc of a pendulum. That is how it should work if everything were "pinned." Obviously we don't do that and hence the human grip is what allows the stick to stay on the table.

Following this line of thought and the usual human shift in the grip, one could improve follow through by pushing through the contact point. This would result in some sort of dropped elbow if the swing is extended. The amount of drop would of course depend upon the player. It would appear that if one is going to keep the cue stick on the table while using a pendulum swing the mechanics are more involved than the simple elbow hinge.

There are some interesting ideas here that I am going to play with.
 
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Dr. Dave:

Before I forget, your notation at the end of the below quote reminded me of ???!!! used in chess books.

"I guess the secret to success for novice hackers is to drop their elbow and tighten their grip just the right amounts, where each effect cancels the other, so the tip ends up where they want on the CB.":eek: :confused: :grin-square:

Your draw shot was sick (sic?). Controlled violence.

In my clip I'm using my max speed. I don't think I can move my arm any faster and maintain accuracy.

KMRUNOUT:

Please post some of your videos.
 
Please forgive the ignorant question from this newbie, and perhaps I'm not getting any of this. But isn't it the shoulder that is really dropping, not the elbow? Again forgive me, as I can't go and watch all these videos that you folks reference. I tried to apply a little of what you folks are talking about (or what I think you are talking about, heh) at the pool room last night, and all I can come up with is keeping my shoulder in a more fixed and upright position, to allow the "pendulum" to swing beneath. And in doing so, I can see that I had been shooting with my shoulder in the "dropped" position previously, explaining at least some of my troubles...

So thank you, everyone, because I think this thread has moved me a little bit in the right direction. And it has been quite amusing watching the banter back and forth, in a mostly good-natured manner.
 
If you drop your elbow, your upper arm comes down.

If you drop your shoulder, your upper body slumps to that side.
 
If you are dropping your shoulder, your whole upper body is probably moving unless you can dislocate it at will (which would be cool to watch, but probably difficult to replicate).
 
hmmmm..... Perhaps I'm not explaining myself correctly, but I'm raising and lowering my shoulder as I sit here typing this, to see how to better describe what the beginner see's in this threads discussion. And I'm doing it without "listing" to the right.

And as I said before, I probably don't understand the whole thing anyway! :embarrassed2: I'll keep reading, and trying stuff out.
Thanks
 
Johnny,

Please try to learn how to use the "Quote" feature. Sometimes, it is difficult to know who you are responding to and who you are quoting. Also, if somebody wants to see the context of a partial quote, they can click on the quote link to see the full post. Sometimes, quoting without context can be misleading.

Regards,
Dave

Dr. Dave:

Before I forget, your notation at the end of the below quote reminded me of ???!!! used in chess books.

"I guess the secret to success for novice hackers is to drop their elbow and tighten their grip just the right amounts, where each effect cancels the other, so the tip ends up where they want on the CB.":eek: :confused: :grin-square:

Your draw shot was sick (sic?). Controlled violence.

In my clip I'm using my max speed. I don't think I can move my arm any faster and maintain accuracy.

KMRUNOUT:

Please post some of your videos.
 
Great Youtube of elbow droppers

I just found an awesome youtube match to study the elbow drop further.

Early Strickland vs Buddy Hall
1988 South Carolina Open

Part 1 of 11

This match is perfect for this because:

1. Earl is regarded as one of top 9 ball players who ever lived.
2. Hall is regarded as one of top 9 ball players who ever lived.
3. Hall's stroke is regarded as the best of all time (and that is what we are talking about on this thread)
4. Early accustats coverage with single fixed camera that shows LOTS of space around the table. This allows us to see the player's complete stance on nearly every shot.
5. Early acccustats coverage with no commentary. THis allows us to focus more on the players and the game, rather than the commentary.
6. Both players are at or near the primes of their careers.

All 11 parts are on youtube, I only linked the first part.

My observations of two of the greatest 9 ball players who ever lived are as follows:

1. Elbow drop is proportional to shot speed. On power shots (not counting the break shot), the elbow came down 10 inches or so for both players. On medium speed shots, the elbow came down maybe 5 inches. On bunt shots, the elbow hardly moved.

I observed 2 total shots with no elbow drop on part 1 link above:
1. At 4:40 Buddy pushes out after the break and moves the cueball a total of 2 diamonds. His elbow was pinned on that shot.

2. At 7:22, Strickland does a power draw half the table length with no elbow drop. However, there appears to be something different about his stroke this shot. It looks like the elbow might raise slightly during the backswing.

All other shots on the first link (2 complete game's worth) looked to have a noticeable elbow drop on every shot.

I'll also repeat what I said regarding Sigels stroke on Spider's link, that to me it looks like the elbow drops from the beginning of the final forward swing, not only after the cueball is struck. It looks like a continuous elbow movement to me. However, without high quality dvds that we can individually frame advance, its hard to prove this either way.

Finally, I'm not arguing for or against elbow drop at this point, but I'm like the others that have stated there must be something to it if "nearly" every A and above level player does it, from local A players (can beat the 9 ball ghost) to the TOP TOP pros (Sigel, Hall, Strickland). The only players who don't do it are the women. And of the women who DO drop the elbow, that I know of... Jean Balukus, Jasmin Ouschan, Pam Treadway, each of them is said to "shoot like a man" and they each play jam up.
 
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Here are some assumptions that are not exactly "scientific" (at least as expressed in this thread) that could use a little more exploration and definition:

"All the top pros use the elbow drop."
...
"it's EASIER to develop an accurate and repeatable stroke [by not dropping your elbow]."
...
We also need to be more clear by what we mean by elbow drop. Early in the thread, it seemed people were referring to elbow drop only after CB contact. In this case, the stroke before contact is a pure pendulum stroke with a "pinned" elbow. It seems that most people agree that not dropping the elbow before CB contact is probably a good thing for most people, in general. However, there are some (maybe even many) pros who do drop their elbow before CB contact on most shots.

I think the pendulum-stroke instructors encourage the still elbow during the entire stroke (both before and after CB contact) because some people might not be consistent with when and how much they drop their elbow. This obviously doesn't apply to pros who have mastered their own individual type of stroke.

When discussing "stroke shots" or "power shots" or the break, the elbow drop being discussed seems to be mostly before CB contact. And it seems most people agree this can help most people create more cue speed more easily. And it also might involve less strain and fatigue.

For people who don't drop their elbow until after CB contact, the stroke into the CB is exactly the same as with a pure pendulum stroke, so both methods share any benefits up to this point: Mainly, if the elbow is still before contact, the tip hits the CB at the exact spot where you were aiming in the set position, with the cue at the same angle (which is fairly constant over a fairly large distance at the bottom of the pendulum motion). For people who drop their elbow before CB contact (intentionally or not), their shoulder and elbow motion (and body motion, if there is any) must be coordinated and timed properly to hit the desired point on the CB. Some people think this is more difficult to master, especially for a beginner. I agree with them. However, many people seem to like the straighter (piston-like), smoother, longer, and unobstructed follow-through that the post-CB-contact elbow-drop allows, especially with shots requiring more cue speed.

Regards,
Dave
 
With all due respect to both of you, I am certain that these conversations do not *need* to devolve into pissing contests. Generally I notice that people are sensitive and defensive. All people. How they show this varies greatly from person to person. No one likes to be wrong, and most people derive a lot of security for their psyche from the comfort of what they believe they know. To paraphrase Socrates, "maybe I am the wisest man in the world, if only for the fact that I don't claim to know that which I don't know."

The fact is, this topic, from a scientific perspective, is really in it's infancy. There is very little in the way of scientific data and analysis in much of anything in pool. People like Dr. Dave and Bob Jewett are certainly working to change this, and deserve props. I think we might all try to keep minds that are a little more open. Perhaps we could not be so quick to defend our own position before fully exploring the position of the other guy. It really is a great way to learn new things, and learn more about what we already know.

Here are some assumptions that are not exactly "scientific" (at least as expressed in this thread) that could use a little more exploration and definition:

"All the top pros use the elbow drop." Ok, I mean, really all of them? Or is it only some? I have certainly watched a LOT of pros play pool. My experience is that the vast majority drop their elbows. I would say over 95%. I can think of only one or two who clearly don't. I watched Ignacio Chavez playing at Turning Stone one time. I only watched for a little while, but it seemed his elbow was really pinned. However, a year or so later, I watched him again on a video and it seemed he was dropping his elbow. Here's the point: let's avoid saying things like "all pros do or don't do this or that." We were provided with a video of Mike Sigel showing a pronounced elbow drop. Well who doesn't do it? What pro really pins their elbow and where is the video to show this?

"it's EASIER to develop an accurate and repeatable stroke [by not dropping your elbow]." This type of statement is conjecture. Without any data or experimental evidence, how do we *know* its easier? Because it seems like it would be? I think before a claim like this can be made, there needs to be a study done in which a large number of random people with no previous pool experience are taught how to play pool. One group would be taught the elbow drop, and the other group would be taught not to drop the elbow. At the end, the relative performance gains would be compared. Has something like this already been done? And let me just preempt the idea that "I've taught thousands of students...etc." by pointing out that this is not scientific. This is an observation severely biased by the instructors own experience of those situations. Remember that we all have personal biases, and the perception of a person's progress will be highly colored by the desire to validate one's own point of view. This isn't bad or wrong-we are all in this boat. However, it is also not scientific, and doesn't contribute as much to a body of information that is "true" for everyone.

The number one thing we can all say to ourselves, in my humble opinion, in any sort of debate like this is "I might be wrong". This is something that an extremely small percentage of people are willing or able to do.

Anyway, just throwing out some food for thought. I would love to hear from the professional instructors (not singling you out Scott, however I think your opinion is extremely valuable!) about *why* they believe it is easier to learn the no-elbow-drop method. I don't think the explanation is adequate that "there are less moving parts, therefore it is less complex, therefore it is easier to repeat". By that logic, the typical golf swing would be a total disaster. Look how many moving parts there are there!! Same with a tennis swing. Same with all kinds of motions involving any sort of swing or stroke. I think anyone who has played golf would agree that the typical professional swing involves a coordinated motion of hips, legs, waist, shoulders, arms, etc., and that this is the *best* way to do it, whether novice or pro. In other words, the way the pros do it in golf is the *right* way to do it. Why would it be different in pool? Let's face it, the motions involved in pool are far easier than in golf. Even Bustamante has far less going on in his stroke than any golfer has in their swing. So the question is: what evidence is there that it is easier to learn one method or the other with respect to the elbow drop? Also, what evidence is there to suggest that one method or the other makes certain shots easier? Obviously this will have a highly personal and subjective answer, but is there any consistent facts for us all?

BTW, one thing I'm not sure if anyone mentioned. For me, the elbow drop happened through research of my own body and motions. I spent a LONG time analyzing my stroke with video, and testing all kinds of things about it. For me, it turned out that the elbow drop seemed to be a better solution particularly with respect to power draw shots. I think the elbow drop stroke, when done correctly, can increase the amount of time that the tip is at the height it needs to be! In a nutshell, that is the main factor that lead to my adopting that method. As others have said, the bicep contraction coupled with the elbow drop can net out to a tip that moves parallel to the table bed. The main advantage to this is that without it moving up and down, there is a greater chance that I will strike the cueball where intended. Thus for me, there is an advantage to the elbow drop method over the pinned elbow method. In the thousands of pool shots I make, I never really find myself saying "well, that shot went wrong because I hit the cueball too high or too low." I will miss, hit it too hard or too soft, but VERY rarely hit the cueball in the wrong spot on the vertical axis.

Anyway, that's it for now. I would really love to hear some input on the above questions.

Thanks everyone,

KMRUNOUT

KNRUNOUT,
It's great to see others searching for ways to improve their stroke accuracy.

Since you have done a lot of research into this (especially with the video analysis) I was wondering if you had noticed any difference in cue ball path when applying Low-left or Low-right spin to shots where the cue ball is more than a three feet away from the object ball, using elbow drop versus pinned elbow. ????

Another thing I have noticed is most of the great bank pool players have the elbow drop almost as a benchmark to their excellence, especially on straight back draw shots or straight back stop shots where precision is at an even greater premium. The professional bank pool players may use elbow drop even more than the professional rotational players.

JoeyA
 
Almost EVERY player drops his ellbow (when finishing the shot). To find a player which would not drop his ellbow........that would take extremly much time :)
 
noticed this long ago

Joe,

This is somewhat in response to your excellent post but I wandered back and forth talking to all readers too. I have been looking at strokes for several years now. Your comments in this post, 306, and KMrunout's in 305 are excellent.

Most if not all advocates of the pendulum stroke in pool also advocate a level stroke with the cue tip moving back and forth in a flat line. I find the distance between my elbow joint and my cue to be about 14 inches when I grip it normally. Modeling this by mechanical means I find that with a 10 inch stroke and the fore arm perpendicular to the cue at contact there will be about 4 inches of cue rise in my grip hand at the back of the stroke. No typo, 4"!!

Considering a roughly one to three ratio of cue tip to grip movement across the fulcrum of our bridge this indicates more than an inch of vertical movement at the tip for a ten inch stroke if it remained ten inches from our bridge. Obviously these things don't happen. Many of us use a shorter bridge so that the cue angle results in far less tip vertical movement on the back stroke, some use compensations, some like those terrible ball pocketers the Filipinos and snooker players ignore the tip going up and down during the stroke because they know this has absolutely no effect on the shot.

There are usually multiple compensations(compared to a mechanical model of a pure pendulum) taking place for a pendulum stroke to work. Usually some elbow movement, movement in the wrist, and some grip movement. Another compensation is that the vast majority of players I have watched on video and looked at photographs of don't hit the cue ball with the forearm perpendicular to the cue most of the time, they hit it later in their stroke. Why is somewhat speculative but the obvious answer is because it requires less compensation on the back stroke to keep the cue level.

When we look at a circle we see that at bottom dead center the cue moves virtually straight back and forth for an instant.(maximum horizontal movement per inch of travel) At left or right dead center the cue virtually doesn't move back or forth for an instant.(maximum vertical movement per inch of travel) In between bottom dead center and dead center of either side the angle of ascent starts to slowly rise but rises increasingly faster with every bit of forward progress. By moving bottom dead center(perpendicular) closer to the center of the stroke, halfway between Pause in SPF and hitting the cue ball, the rise and fall of the cue stick due to the pendulum is minimized.

The pendulum requires timing and compensations to maintain a relatively level cue. So does every other stroke. We can abandon the level cue stroke concept or we can abandon the "pure" pendulum. The two are simply mutually incompatible as you realized when you started looking at your arm as a mechanical device. With whatever compensations used the pendulum is an excellent stroke. However, the actual execution of a pendulum at a high level seems as difficult as executing any other stroke at a high level and few people are seeking to be so-so for life.

We need to be able to hit the cue ball very precisely regardless of which stroke we use. Using a pendulum the amount of compensation needed varies very rapidly with the length of the stroke as the stroke gets into the typical range. Looking at my mechanical pendulum discussed in the beginning of this post a five inch stroke only needed less than 3/4" compensation while the 10" stroke needs roughly 4".(my measurements were crude with what I had handy in my office. It's cold in my shop!)

I will close with a note that every other stroke commonly used has issues similar to the pendulum stroke. Modeling the basic pendulum is easy, modeling what actually happens on the pool table is a nightmare, too many variables. The same is true for the other strokes. It mostly comes down to which one do you want to devote the most time to. Seems to me that whatever stroke you use the most will become "the best stroke" for you. Also, those that plan to seek instruction should decide on a path fairly early on. If you favor an instructor that is a pendulum advocate you are probably best off perfecting a pendulum. If your instructor(s) favor(s) something else, probably best to learn what they do. A bit from everywhere can work well or it can be a total disaster. Working with a total package you at least have some idea where you should arrive at.

Hu



Turns out I was thinking and not playing. It seems that by definition the stick has to rise at the end of a pendulum stroke which is on the up swing. This is true if the rear of the stick is held firmly in the hand. That is what I thought was happening !

When I went to the table and studied the back hand during the pendulum stroke it turns out that the grip naturally changes to allow the stick to stay down. Apparently, the mechanics of a pendulum stroke includes some sort of hand release or altered grip to keep the stick on the table.

Consider for a moment if one were to use two screws through a piece of wood to hold the cue stick. This piece of wood (representing the hand and the forearm) is attached to what would be the elbow. In this abstract system the stick would rise as it proceeded through the arc of a pendulum. That is how it should work if everything were "pinned." Obviously we don't do that and hence the human grip is what allows the stick to stay on the table.

Following this line of thought and the usual human shift in the grip, one could improve follow through by pushing through the contact point. This would result in some sort of dropped elbow if the swing is extended. The amount of drop would of course depend upon the player. It would appear that if one is going to keep the cue stick on the table while using a pendulum swing the mechanics are more involved than the simple elbow hinge.

There are some interesting ideas here that I am going to play with.
 
Most if not all advocates of the pendulum stroke in pool also advocate a level stroke with the cue tip moving back and forth in a flat line.
This is not correct. Keeping the cue tip moving in a straight line requires a "piston stroke," not a pendulum stroke. A piston stroke requires coordinated (constantly changing amounts of) elbow and shoulder motion. For many people, this is much more difficult to achieve than an elbow-only pendulum motion, where the grip hand moves in an arc, which causes the tip to move up at during the back stroke and down during the follow through (assuming the cue isn't being lifted off the bridge with a "death grip").

Regards,
Dave
 
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