Thanks for the info charlest. You are correct, I used 500, 1000, 2000 abralon proir to polishing, and yes there are sanding lines on this ball, but...
so do my resins at 500 plus a coat of gritless polish. I was actually trying for 500 grit underlying gritless polish. Looking for a very true even reaction with length. I just didn't have any success trying to polish over the 500 grit which is why I took it up to 2000. So I thought there might be an easy polish recommended to shine this stubborn urethane over the 500 grit surface.