BallReviews
General Category => Drilling & Layouts => Topic started by: Strapper_Squared on February 24, 2007, 05:50:52 AM
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What is everyones peronal method for getting the perfect fit for a ball? I have gone through several span/pitch changes...took some ill-advised advice and went with a stretched span for a little while, etc. I ended up with a few different pitches/spans throughout my equipment. I have decided to start new and keep everything the same.
I am sold on a relaxed span (as proposed by Bill Taylor and Mo Pinel amongst others...). When measured with a BT fitter (http://"http://www.jayhawkbowling.com/Products/BT_Fitter.htm"), the mid-point between the two creases in my finger joints measures 4 5/16 by 4 7/16. My thumb flexibility is just short of 90 degrees (maybe 80-85)... thumb is regular (not excessively dry or tacky)... Based on that span, BT suggests a reverse thumb pitch of (4 7/16 - 4 1/4) / 2... or about 3/32 reverse...with only average (or slightly less) flexibility in my thumb..add another 1/16 reverse to get a value of 5/32. As far a lateral thumb pitch..I'm unsure of what's ideal for me (I'm rt handed). I have used (in the past) anything between 1/4" left to 0. The bottle test says I should be between 0 to 1/16" right lateral..but again, my thumb isn't all that flexible.
As far as finger pitches, the first joint of my middle finger can flex about 75-80 degrees (not quite perpendicular to my finger, when pressed, but almost), but my ring finger is quite a bit less flexible.. about 45-50 degrees tops. Previously I had been using 3/8 reverse in my middle finger and 1/2 reverse in my ring.
Based on this description (or any other "tests" you may be able to give me), does it sound like I'm close? I know its hard without actually seeing my hand, ect. As far as trying another shop locally... that is how I ended up with the stretched span (found that the span to the first crease of my finger is 4 11/16"...LOL).
S^2
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Edited on 2/24/2007 3:07 PM
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Best as I can tell without actually being able to read your hand, you're pretty close. You might try 1/8 reverse for the MF instead of 3/8. The 1/2 reverse for the RF should be good. If you're using grips with lifts, add enough reverse to offset the built in forward in the grip. I would suggest staying with a little left on the thumb, more room for error in that direction. If you really want a good thumb release, oversize the hole by 1/32 and use a Magic Carpet. Good luck. -- JohnP