What is the cover at on the solid you intend to polish? How does it react now? Need to know this to tell you what the best adjustment would be.
If the solid if too jumpy, polish can add to or take away from the problem. A polish with grit can give you more length and smooth out the backend. A polish with no grit will likely make the ball more angular on the back.
Consider 4000 no polish or stepping up to 4000 no polish 500/1000/2000/4000. Maybe try up to 2000 first and see what reaction you get. If it rolls too early or is too strong on the back go up to 4000. Add polish if needed for more length and or angle in the back.
Those that can do. Those that can't complain. Pimpin ain't easy, but it's mandatory.
Most things we like, we don't need. Most things we need, we don't like. Don't confuse your likes with your needs.