I've used this stuff for a long time, mostly on nitro lacquer, and it works great. That doesn't mean it will work great on any other particular finish, but it has always worked for me. It comes in grades that are not numbered sequentially, but they put a little thermometer type gizmo on the label to indicate anything you can't figure out from the names. Fine Cut Cleaner takes out most player wear. You follow with Swirl Remover or Plastic Polish, then your favorite polish. If the scratches are heavier you may start with Medium- or even Heavy-Cut Cleaner. This stuff works fine, its cheap, and you can get it anywhere. Just remember to check that little patch on the back, just to be sure.