Brandon, not sure where you're getting your information. If you can't polish your ball during league, why does ABC have their approved list. I can't find anything in the rule book that says it has to be applied with a machine.
There is a section that states that if you scuff a ball, you must do the entire ball, not just the track area. This, however cannot be done during league.
Post the chapter/section from the rule book where you got this information.
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~~~SrK - Have balls, will travel
1st law of combat, "Bullets always have the right of way"