If you usa a rasp, two words...light and slow ! It takes out a lot with little effort, but a good tool to have. Work out tool is also a good one to use. Takes out as much or little as you apply pressure.
They are hard to find ( in the right size) but I also use a "D' file or half round file. It allows me to take smaller amounts out and depending on the pattern, a nice smooth finish.
Final sand I use sandpaper on my finger, it's the only way I can get the right "feel" of the final hole. I do think also, that the customer is the only one that can really finish, knowing the right feel and what side may need a bit more than the other to get the "perfect" fit.
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AZ Guy aka: R & L Bowlers Pro
rlbowlerspro@cox.net
www.rlbowlerspro.comSleep is over rated.