Polish advice questions there are way too many of them on here.  Its Pk18 one of if not the most versatile covers.  Try your fav. polish they all work some people just have preferences.  If you don't like it polished lightly sand it back off, tyr another polish.  What works for one may not work for another, just experiment thats all you have to do.
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There is only one Lane#1. Know it, Live it, Throw it or Get Beat by IT!
Leader & Founder of Fellowship of the Saws! 03/04/05 Respect us or get left in our Saw Dust!
There is but One Power, One Order, One Ball. There is only the F.O.S. and there is only the Lane#1 Buzzsaw!

I have my Rico drilled Nemesis at an extremely high gloss with Ebonite Extender polish.  The reaction is wonderful, and still super smooth, just alot more continuation on the backend than it was in box finish.
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-DP3
Respect the Game

Went 400 grit then, er, I don't remember what. Ebonite polish of some sort, I gave it to the pro shop guy just before league and got it back about midway through the first game. Didn't give it much of a try that night, but last night it was pretty impressive. Oil was pretty much gone by the end of the second game, went front 7, 8 pin, 10 pin, some yuck to finish. Got my Nemesis out for the third, X open XXXXXXX9/X  for my highest game since I started bowling again Very smooth on the dry outside, retained a lot of energy and blew the bejeebus out of the pins.