I think the best thing to do is try a 2000 grit & see what the ball does on a similar lane condition. If it is shiny & you hit it with 4000, it with just knock the sheen off. If you use 2000 it wll appear a little duller & probably smooth out the reaction a bit a possibly handle a touch more oil. If you don't like the reaction, you can always polish it again.
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Wayne
FOS HARD CORE MEMBER
Bomb Squad & Diamond Cutter
And as it is appointed unto men once to die,
but after this the judgement