I have never used polish on a ball. I've never really asked anyone about this, and I wondered what are the pros and cons. I've got a ball that I've had for awhile, and I might put some on it and see what happens.

Black Magic is the brand our center carries. One has a green label and one has a black label. I know I should get more length with the polished ball, but how about backend reaction and carry?

If anybody can help, I'd appreciate it, this is something I haven't tried and I'm clueless about! thanks
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It seems one man's struggles solve another man's problems.....

OK. First the ball is a Columbia Icon 300 with the muscle coverstock, and the lanes have pretty clean backends. The surface of the ball now is probably about a 1200-1500 grit. I'm thinking about having it sanded again, the finsih is just looking dirty, but I wanted to experiment with the polish first.
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It seems one man's struggles solve another man's problems.....

ok
that would be the time before sanding.
if you have access to a spinner
use a terry cloth or whatever use enough polish
and give it a good shine  then try it out.