Jabroni is correct.  If you choose to drill into the pin, if you go pretty slow when drilling, you should just about eliminate any worry about the ball cracking.  But I personally choose not to drill into the pin.
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Steven Vance
Former Pro Shop Operator

If anyone out there is worried about the scores being too high, try duckpin!!

Yeah.. if your going to drill into the pin, drill it all out. I've seen half drilled pins start to crack or seperate from the ball.
Can't you get your desired reaction with out drilling out the pin? just a thought
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Most reacent proud of accomplishment... The big four was OWNED!! when it truely matters, pot games...hehe > )

I've had four balls with partially-drilled-out pins. Number of problems: Zero.

I've also heard this myth of it being "against the rules," but I can't find it in the book. Two of the people that have drilled balls for me have been in the business 30 years, and my current driller teaches other drilling classes. They all say it's legal, and with that kind of expertise talking, someone will have to cite me the rule before I'll believe otherwise.

Unless you're going to be in a league or tournment that bans any plugged equipment whatsoever, my opinion is to drill wherever you need to drill to put the drilling on it, and if it cracks later, drill out the pin, plug the area and just re-drill the finger hole.

A pin is made of a substance very close to plug material, anyway; it's not like we're drilling into a plutonium mine or anything. (g)

Jess

Edited on 8/12/2006 4:13 PM