It all depends what you want to do to the ball. If you want to resurface it go up through the grits. If you don't want to resurface I hit the ball with an 1000 grit abralon pad. Then I would recommend you use 3M Compound to polish it. The ball will come out very nice and have a nice shine. Thats just my opinion and what I have done to mine in the past.
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In the bag:
16lb. Pearl Cherry C/2(808 series)
16lb. Pink Rasberry
15lb. Pro Purple
15lb. Enriched Uranium
15lb. Cobalt Pearl
15lb. G-Force
15lb. Super Carbide Bomb
15lb. Crystal Diamond
15lb. No Mercy