My fingers used to hurt after I was done bowling a lot of games. I learned that my span was 3/8" too short. I was really gripping the ball. I also took out the inserts. I bowled a couple of Sundays ago for 2 hours straight. No pain at all afterward. During my swing and when the ball leaves my fingers, I don't really feel anything. My fingers are at 0x0 and my thumb is 0x3/8 reverse (my span is 5 x 4 13/16).
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HG: 300
HS: 826
Cell, Special Agent, Paradigm, X-Factor, Erase-IT, Spare Storm (black)