DRAW SHOT Effects Myth Buster … a Slow Motion Video Study

This may be one of my favorite Dr. Dave videos of all time. Excellent work Pubo and Dr. Dave!

I've been trying to communicate exactly what is shown in this video forever, but I don't have the articulation you do. Being a professor definitely does help!
 
This may be one of my favorite Dr. Dave videos of all time.

It is one of my favorites also (although, I think there are many more that are much more important and useful).

Excellent work Pubo and Dr. Dave!

Thanks!

I've been trying to communicate exactly what is shown in this video forever, but I don't have the articulation you do.

Now you don't need to attempt to articulate it anymore. Just provide the video link instead. :geek:

Being a professor definitely does help!

Yep. Just like in pool (and everything), the more you practice, the better you get (especially if you have good mentors and role models, like I did).
 
Great video, I’d like to thank you and Pubo, for the work. I find it amazing that some people require so much convincing. The original striped ball/chalk mark video should tell anyone all they need to know. You have definitely laid it all out there, and greatly improved my experience, when drawing the ball, Thanks 👍
 
FYI, I just posted a new video that shows and discusses results from a careful slow-motion-video study debunking many common myths concerning draw shot effectiveness related to stroke acceleration and timing, and tip contact time. Check it out:


Contents:
0:00 - Intro
0:53 - Background
3:09 - Study Procedure
5:30 - Study Results
6:09 - Acceleration Effects
7:53 - Speed Effects
8:59 - Wrap Up

As always, I look forward to your feedback, comments, questions, complaints, and requests.

Enjoy!

Great video as always. And @Pubo thank you for the tedious work of collecting this data.

I’m curious if you have data on the impact tip offset has on the resulting draw, assuming an equal speed. How much difference would .1 in your ball scale make?
 
Great video as always. And @Pubo thank you for the tedious work of collecting this data.

I’m curious if you have data on the impact tip offset has on the resulting draw, assuming an equal speed. How much difference would .1 in your ball scale make?
I haven't done this yet. Using the top edge of the shaft to approximate tip height is easy and consistent, but the actualy contact point varies non-linearly with this "tip height" because the tip is round. I might do some analysis when I got time. So far just by looking at these footage, I feel like speed has more influence than the difference in tip heights (which agrees with physics).
 
Dave,
In my experience, a draw stroke with better ‘follow-thru’ typically produces more CB action/distance. How does that relate to your test results (?).
 
Great video, I’d like to thank you and Pubo, for the work.

You're welcome.

I find it amazing that some people require so much convincing.

That's the nature of the world today with all the "Fake News" and "Alternative Facts."

The original striped ball/chalk mark video should tell anyone all they need to know.

Agreed.

You have definitely laid it all out there, and greatly improved my experience, when drawing the ball, Thanks 👍

I'm glad to hear it. Although, much better advice for developing and improving draw stroke technique can be found in the videos here:

 
Great video as always.

Thanks.

And @Pubo thank you for the tedious work of collecting this data.

Yes. Thank you Pubo!

I’m curious if you have data on the impact tip offset has on the resulting draw, assuming an equal speed. How much difference would .1 in your ball scale make?

We should have included draw distance as another column with the data. Although, it is visually obvious is all the clips we showed.
 
Dave,
In my experience, a draw stroke with better ‘follow-thru’ typically produces more CB action/distance.

That is my experience also. With a relaxed and smoothly accelerating stroke, a good follow through cannot be avoided. See:


How does that relate to your test results (?).

It isn't directly related to the results, but it is certainly indirectly related. Acceleration at the moment of contact is not important, but smooth and complete acceleration during the forward stroke into the ball is critical. The cue speed required at impact automatically creates follow through, unless one tenses up the grip and artificially constrains the follow through.
 
And voodoo.

I wish there was a Dr Dave for carom games. Those balls do far more spectacular things than pool balls do.
I can answer this for you, since I am a student of the game. This is a ticky with inside draw.

The player in this video hit the ball at about 7:00 o-clock, and "aimed for" the last portion on the short rail, by bending it, with so that he could double it with the inside spin. The draw bent the shot.

If you aren't aware, there is a big difference between pool table rails and cloth, and that of carom tables. Pool table rails are very soft and the cloth has more friction. Carom rails are made of harder rubber and allow the balls to retain more of their initial spin after the collision. The time that it takes for the table friction to change the ball paths are longer (a lot more slide), so you can play for reactions like this after multiple collisions.

Believe it or not, though this was a very well executed shot, this is also a reasonable solution and isn't rare to see.

Another common way to play this is with 11:00 English and no ticky, long rail, long rail, and short rail right before the red ball. Top bends the ball after one collision, and requires some feel also.
 
That is my experience also. With a relaxed and smoothly accelerating stroke, a good follow through cannot be avoided. See:




It isn't directly related to the results, but it is certainly indirectly related. Acceleration at the moment of contact is not important, but smooth and complete acceleration during the forward stroke into the ball is critical. The cue speed required at impact automatically creates follow through, unless one tenses up the grip and artificially constrains the follow through.
Interesting. I never would have guessed that making a conscious effort to follow thru on your draw stroke might automatically increase cue speed. I wonder though, if someone making that ‘conscious effort’ might typically also have a natural unconscious tendency to simultaneously tense up their grip?
 
Interesting. I never would have guessed that making a conscious effort to follow thru on your draw stroke might automatically increase cue speed. I wonder though, if someone making that ‘conscious effort’ might typically also have a natural unconscious tendency to simultaneously tense up their grip?

... or collapse the shoulder and drop the elbow before CB contact in an attempt to exaggerate the follow through. That's also a bad thing.
 
I can answer this for you, since I am a student of the game. This is a ticky with inside draw.

The player in this video hit the ball at about 7:00 o-clock, and "aimed for" the last portion on the short rail, by bending it, with so that he could double it with the inside spin. The draw bent the shot.

If you aren't aware, there is a big difference between pool table rails and cloth, and that of carom tables. Pool table rails are very soft and the cloth has more friction. Carom rails are made of harder rubber and allow the balls to retain more of their initial spin after the collision. The time that it takes for the table friction to change the ball paths are longer (a lot more slide), so you can play for reactions like this after multiple collisions.

Believe it or not, though this was a very well executed shot, this is also a reasonable solution and isn't rare to see.

Another common way to play this is with 11:00 English and no ticky, long rail, long rail, and short rail right before the red ball. Top bends the ball after one collision, and requires some feel also.
I'm well versed...though I'm only a couple years into my capitulation.

Love those gdamn balls. It is a far better game than pool, I say.

I'm going to celebrate myself, in fact:
I played a hell of a ticky yesterday. I was absurdly close to red ball and could only shoot to Long rails or to the end ,toward ob2.

Ob2 was at the other end of the table, ~8cm up from the center. I kicked long rail and back to full on the ball I had been stuck on, then in/out of corner for two more rails and the score.

I was gonna yell but there was no reaction from the room, so...
 
I'm well versed...though I'm only a couple years into my capitulation.

Love those gdamn balls. It is a far better game than pool, I say.

I'm going to celebrate myself, in fact:
I played a hell of a ticky yesterday. I was absurdly close to red ball and could only shoot to Long rails or to the end ,toward ob2.

Ob2 was at the other end of the table, ~8cm up from the center. I kicked long rail and back to full on the ball I had been stuck on, then in/out of corner for two more rails and the score.

I was gonna yell but there was no reaction from the room, so...
Not to turn this into a billiard thread, so I’ll just make one more comment. In case you are not aware, natural tickies off the long rail track to the head/foot spots. You can modify this angle with top/draw, as Mazin Shooni expertly showed me one time. It is great to know because you end up making a lot more points.
 
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