just playing for fun last night... i use 10-11 already felt heavy, the 8-9 hole too small...
13-15, think i need to go gym 1st...
Get a 12 or 13 in that case. =)
You can go 2 Lbs more as custom drilled ball will fit better and not feel that heavy. whats more, you have botten a glove? (is it a solid guard? To prevent your wrist from bending?). That guard will help to increase the weight of the ball you hold as well as prevent wrist breaking to add revolutions to the hook. =)
Cheers,
tltan