I have to agree with Chi on this. Its not a dry lane ball. The factory finish is 4000 with polish. So if you want to tone down the ball you will have to go with some sort of extender type of polish. By the way, how did you drill it.
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Team HammerHead
2008 USBC Nationals
ABQ, NM
"USBC is concerned that technology has overtaken player skill in determining success in the sport of bowling"