I too use to think the higher the shine or higher grit, the more backend reaction.
I soon learned that too much shine will cause a ball to not react at all. If you had a ball on the spinner and keep burning in the polish, you will end up with a spare ball..lol
The thing with polished finishes is it really depends on the under laying grit at which you apply the polish.
Look at how some guys scuff up the back-flares on a ball to make it bite on the back of the lane.
Kinda goes againt everything preached on this board, lol
So to much polish will make the ball not react at all...
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Roto-Grip
When faced with a difficult situation, Jesus asks himself, "What would Chuck Norris do?"Robo-Arm bowlers SUCK...