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  1. BC21

    speed of pool shots?

    Down and back twice? Is that what you mean?
  2. BC21

    speed of pool shots?

    I believe medium soft to medium firm speeds are around 5-12mph, with normal being in the 7 to 10 range. Soft would likely be 2 to 4mph. Firm would be greater than 12 but less than 20, which is a good break speed. This is just based on timing a few shots from YouTube.
  3. BC21

    advice for hitting this draw shot?

    I think it's easier to control speed/distance and accuracy when rolling the cb, rather than using draw. So, anytime there's a choice of rolling for position or drawing for position, rolling is usually the better option.
  4. BC21

    Has Dr Dave's example been addressed in this forum?

    Is this because the cushion/points compress more?
  5. BC21

    advice for hitting this draw shot?

    Not that this is a solution to your draw problem, but be sure to look for all options before deciding your shot. In this sketch, for example (maybe it wasn't exactly like this in real life), the 8ball goes in the opposite side pocket. So, simply rolling forward, maybe bumping the 12, will...
  6. BC21

    Has Dr Dave's example been addressed in this forum?

    If you're feeling more anal, which is probably not good, lol, the actual number is 1.01"
  7. BC21

    Has Dr Dave's example been addressed in this forum?

    Yeah... on a valley barbox, or Dr. Dave's table, this works just fine - the balls have all kinds of play/slop to drop into the pocket. On a tougher table, however (even with 4.5" pockets and at least a 1" shelf), the ball has to be hit at a soft pocket speed if you hit the cushion, else it will...
  8. BC21

    Has Dr Dave's example been addressed in this forum?

    Yes, once a player works with 8ths and 16ths for a while, fine-tuning fractional aims/overlaps to much finer and more precise hits when needed becomes easier to judge and hit.
  9. BC21

    Cue Tip Contact Myth-Busting Truths in Super Slow Motion

    Hitting firm with a soft tip causes the tip to grab the ball, and it deforms as it grabs, absorbing quite a bit of the impact, while the ferrule/shaft end moves forward and sideways a bit, leaving the tip behind for a brief time. The hit is not very efficient compared to using a hard or...
  10. BC21

    Cue Tip Contact Myth-Busting Truths in Super Slow Motion

    So I guess none of this matters. I mean, if a harder offset hit causes more speed but somehow doesn't result in more spin, I'm definitely lost. Actually, calling it a "harder" hit is wrong. A harder tip has a more efficient hit. I'm not talking about the difference between hitting a shot...
  11. BC21

    Cue Tip Contact Myth-Busting Truths in Super Slow Motion

    Sort of. A harder tip produces more speed and spin than a softer tip when the same stroke effort is used, though any significance of the difference is questionable. Still, it would be nice to know just how much different certain shots would play with a hard tip (not phenolic) vs a super-soft...
  12. BC21

    Cue Tip Contact Myth-Busting Truths in Super Slow Motion

    Hitting harder. Yes. Lol... ok. Let's say two baseball players are talking about two different baseball bats. Both bats weigh the same and are the same size. One bat, however, is made of thick plastic with a soft rubber coating around it, while the other is a standard aluminum bat. One...
  13. BC21

    Cue Tip Contact Myth-Busting Truths in Super Slow Motion

    Should be same deflection and weight. The only thing different should be tip hardness. That's a test result I'd like to see. Just curious.
  14. BC21

    Cue Tip Contact Myth-Busting Truths in Super Slow Motion

    In bold....this hasn't been proven. You're probably right though, that the difference is only in the ratio. Anyway, I thought that's what this whole debunking thing was supposed to prove, that different tip hardnesses don't provide different spin results. But to me that means the stroke...
  15. BC21

    Cue Tip Contact Myth-Busting Truths in Super Slow Motion

    Lol. 1000 would work. The testing, or "proof", that Dr Dave has shown is excellent when it comes to moving the cb around the table. He has definitely made it clear that there is no effective difference between tip hardness when it comes to generating cb action off the cushion at equal cb...
  16. BC21

    Cue Tip Contact Myth-Busting Truths in Super Slow Motion

    I imagine rolling a steel ball down a ramp. At the bottom of the ramp is a steel block. The centerline of the ball strikes the right side of the block and causes it to move forward and rotate a bit out of the way. With some shots, like soft speed maximum spin shots, cb spin trumps cb speed...
  17. BC21

    Cue Tip Contact Myth-Busting Truths in Super Slow Motion

    Dr Dave focused on producing consistent cb speeds to show the cb reaction/angle off the cushion. This works great to prove that at equal cb speeds different tips produce the same amount of spin on the cb. But that's not the same as proving that different tips produce the same amount of spin...
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