Hello all, I will try to get my span specs later, never asked for them.
I have three balls, a 607ase, 716c and a roto grip outlaw. All three balls were drilled by different drillers.
The Outlaw is my newest addition (1 week old) and fits great. I have to add and remove tape at times but I can definitely get a clean release out of the ball everytime.
When I had the Outlaw drilled, my driller re measured my hand and confirmed that the 716c was drilled for the correct span. We left that ball alone. The 607 was drilled for a slightly shorter span so he re slugged the 607 and opened up the 607 a little bit (i would occasionally have problems getting out of that balll with my thumb).
Whenever I throw the 716c, I get caught at the base of my thumb and either add a bit of loft on the release or I get this rotation that is not consistent with my normal release. With the 607a, I have 3pieces of tape in there and still have problems holding on too the ball, I fear the thumb hole is too big for the span.
Everyday I have to pick with each ball adding and removing tape trying to figure this out. Should I return to my driller and have him plug the 607/716 thumb holes and try to match the thumb hole dimensions on the outlaw? It's very frustrating right now, I have made large improvements to my game but have been stuck having to use my med-heavy oil ball on every condition because this is the only ball that I can get out of clean........ Any suggestions are welcomed.