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  1. Patrick Johnson

    One Pocket Break

    Somebody asked about the one pocket break recently, which got me tinkering with VP4 (ruh roh). Hope this is helpful. pj chgo Typical one pocket break - good result
  2. Patrick Johnson

    Spin-to-Speed or Revolutions-per-Foot?

    In pool we use the term "spin-to-speed ratio" to describe the "amount" of spin on the CB, comparing revolutions to distance traveled over a fixed time. But the simpler way to express that would be "revolutions per foot traveled", ignoring the time interval. For a given amount of tip offset...
  3. Patrick Johnson

    Designer pool

    8-footer by Hermes. Only $265,400.
  4. Patrick Johnson

    Perfect Stroke = No Stroke?

    What if we could just aim our cue like a rifle with the tip at the contact point and instead of stroking it simply pull a trigger to shoot it at any preset CB speed? Would taking the stroke out of the equation mean more accuracy/consistency or less refinement/creativity? If your only motive is...
  5. Patrick Johnson

    Pool & Golf?

    What do you think of a pool hall with an adjacent golf simulator room? Synergistic cross-attractions or totally different clientele? Which is better? Asking for a friend. pj chgo
  6. Patrick Johnson

    Carbon Fiber vs Maple - Density and Squirt

    Just because I was curious, here's a simple diagram of the cross sections of two 12mm shafts, carbon fiber and maple, showing the thickness of CF walls needed to equal the mass of the equal diameter maple shaft (for CF that's 2.5 times as dense as maple, which Google says is more or less...
  7. Patrick Johnson

    Mothers of Invention

    Are you in there, Doc? pj chgo
  8. Patrick Johnson

    Name These Overlaps

    Saw this on Facebook and wondered if you see it like I do: except for the “full”, "1/2" and “thin” hits, I think they’re backwards - the fraction should describe the amount of overlap, not the amount of “revealed” object ball. pj chgo
  9. Patrick Johnson

    Period

    .
  10. Patrick Johnson

    Draw Stroke

    https://www.facebook.com/reel/227570483743401?fs=e&s=TIeQ9V&mibextid=UleXdB
  11. Patrick Johnson

    Test thread with deleted post

    Test post (couldn’t delete)
  12. Patrick Johnson

    Legal?

    https://www.facebook.com/reel/301124629198672/?s=ifu&__cft__[0]=AZWAO1_SfgHggxNXkfrCEx7NN65RpULweIfKRDrWVXrwXQrZj1VOWBX76Pb2Ci08or0mR4UbVHQP_kGv_Z4wBxcePUAMjTT3fFH8QXlJekqu5_Ju2LeNERTEBdCpKgvNVWsJ7HjkjOnQMa8bsfvtUdiozBkwkDl7Niu9VGaoMgNQEWwt2yu7XQA3AlhayCLJ_al-4qZt-3-kTomiM94Ve0I1N7R5SkBk7GiBxjL92...
  13. Patrick Johnson

    Pocket Facing Angles - Why Not Parallel?

    Pocket specs say the back (throat) of the pocket opening should be narrower than the front (mouth), apparently so the pocket will reject some balls that hit the facing at the "wrong" speed/angle. My question: the ball has to get past the mouth to hit a facing - why isn't that good enough? pj...
  14. Patrick Johnson

    MLK

  15. Patrick Johnson

    Ultimate Stroke Test

    :oops: pj chgo https://www.facebook.com/reel/1186304192006315/?s=ifu
  16. Patrick Johnson

    Measuring Pics of Pockets Using Balls as "Rulers"

    There's been a lot of discussion about pocket measurements lately, so I thought it might be useful to show how they can be measured from a pic (if it's not too distorted by camera angle) using the balls in the pic as "rulers". These are corner and side pockets from VP4 - ball "rulers" are...
  17. Patrick Johnson

    Flow

    Takes both. pj chgo
  18. Patrick Johnson

    Toronto Pool Comeback

    https://www.thestar.com/life/together/places/2022/11/13/why-the-citys-pool-halls-are-making-a-comeback.html
  19. Patrick Johnson

    Is "Feel" Essential for Successful Aiming?

    I've always maintained that there are too many different cut angles* needed in pool for any usable aiming system to possibly "define" all of them so precisely that any shot can be made by following the system's instructions to the letter, without the need to recognize the final aim solution...
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