My wife has a No Limit. She had a problem with the surface as well. I knocked the polish off it, took it to 2000, no polish and now she loved the ball for the second or third game. A lot will depend on the amount of oil you have.
As for the thumb, sounds to me that it's a good fit until your thumb starts to swell a bit. You might think of taking the thumb a bit larger, first game or so, using a bit of tape, then as it swells take out the tape. Hard to say without seeing it, but that's an option you have, talk to your driller.
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az guy aka: R & L Bowlers Pro
rlbowlerspro@cox.net
www.rlbowlerspro.comLooking for treasures ? Take a look at my wife's ebay store
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