Just be cautious with polishes with grit in it. Diamond Gloss or even "plain" Xtra Shine will get you a 1000 grit, a 1500 grit or 2000 grit shine, DEPENDING on how much you use, how hard you press, how long you press. The same with the Storm "Step" polishes, BECAUSE they have grit in them. You have to learn to "eyeball" it to get to the point where you need/want it to be.
Diamond Gloss does not automatically get you 5000 grit, nor does Xtra Shine automatically get you 3500 grit shine with any and every application.
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Just like hand grenades and horse shoes, in bowling you only have to get close ...
CharlesT