For all you thumbless bowlers, where do you track and where is your PAP? I bowl thumbless and apparently I'm somewhat of an oddity. My track is quite normal, close to the fingers and thumb, maybe a tad inverted. As close as I can figure my PAP is 5 3/8" and zero up and down. Most of the thumbless bowlers I've seen tend to hit the middle finger hole and track way away from the thumb hole.
If you don't bowl thumbless but drill for thumbless bowlers what have you seen as far as their tracks?
sprocket