this might work. but it would take forever to determine what shots are acceptable and who would determine if they are acceptable. if its the shooter then it would be biased.
Cue Tip Contact Myth-Busting Truths in Super Slow Motion
- Thread starter dr_dave
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this might work. but it would take forever to determine what shots are acceptable and who would determine if they are acceptable. if its the shooter then it would be biased.
how do you get spin with out speed?
You don't - but that's not the question here.
The question here is how do you change the ratio of spin to speed? Hitting harder/softer or using a harder/softer tip doesn't do that - only hitting a different distance from center does. This difference (and why it matters) is at the heart of your misunderstanding.
pj
chgo
Sigh
Of course COR within the normal tip material range is dependent on the hardness. That is wholly aligned with everything that’s been said.
Please see the toxic thread. This is also why.
what about not using a tip? will that affect spin?
no, not all. wtf. are you high???
no it will not affect the spin or yes it will? not sure about your response
WobblyStroke
Well-known member
A ball that is cut by another spinning ball doesn't care about how and with what that spin got there but only the amount of spin, so the throw question is out imo.
As for draw vs sidespin, my initial thought was that a ball doesn't care if you hit 2 tips low or 2 tips to the side, the amount of spin that the ball takes on will be proportional to the offset from center regardless of axis. Then the 'what ifs' came in.... like what if the hard tip causes the ball the hop more than a soft tip, reducing friction with the cloth and the effective amount of spin on the ball due to less being dragged off? Hmmm. Still think that difference is probably negligible and the offset from center will determine the spinrate, but I can't be sure.
COR is a measure as defined in the work of Dr. Dave is a measure of the transfer of linear kinetic energy. Rotational kinetic energy is not considered.
Therefore, sigh. What you wrote is not useful to the present analysis.
In the absence of scientific equipment, you just creat a lot of data. Remove the top and bottom 20%, and average the rest. That will all but eliminate the oddball shots.
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The cb acquired it's spin from its collision with the tip. So, the spin induced throw is quite relevant.
Simple example:
Have you ever noticed going from playing with a hard tip to a soft tip (or the reverse) that the cut angle changes slightly when you use english? Balls that you expect to make can hang up in the pocket due to this unintentional spin.
In the language of Doctor Dave, I believe it has a "noticeable" effect. In any case, I'm not yet convince that the myth is busted.
I play bad, amigo. But I'll try you some cheap.Since "pool takes balls" is it safe to assume that you do not play??
WobblyStroke
Well-known member
I just meant that if we test for spin differences like in the experiment we been discussing all morning, what effects that spin has on spin induced throw is secondary as SiT is determined by the amount of spin, regardless of how that spin got there.
I have noticed this same difference. However, that difference exists between cues and any time I was comparing soft/hard tips, I was using different cues rather than using the same cue and changing tips. I attributed the difference to the deflection differences between cues.
WobblyStroke
Well-known member
You can maybe question brains as others have (I don't btw), but to take on accepted authorities on a subject with such vigor, guy def doesn't lack balls. Got a laugh outa me tho, so mission accomplishedSince "pool takes balls" is it safe to assume that you do not play??
Deflection is definitely a factor, if you change shafts. But if you only changed the tip...hard to soft let's say...? Then deflection is not a factor, since it depends on the tip-end mass of the shaft.
WobblyStroke
Well-known member
Agreed, but when you noticed the differences is that how you did it? I didn't go hardcore into these tip hardness differences to the point of switching tips on my cue (esp since I know I don't want a hard one on my player anyway). So when using different cues with different tips, I generally attributed the difference on these types of shots to slight differences in deflection rather than anything else.
Yes And no. A hard tip is actually denser than a soft tip so it has more mass. Therefore Theoretically, a hard tip will deflect slightly more than a soft tip. But For all practical purposes it is almost immeasurable
Good points. I'll tell you where I'm coming from...I often played off the wall, usually a 20 oz. house cue. The deflection is pretty much the same, but sometimes the tip is hard, and sometimes it's soft. So I think I can reasonably attribute the differences in action to the tip hardness.