There was a good write up on this in the "Restorer" several years ago. It was reprinted in one of MAFCA's early "how to.." books. My advice: 1. get the right compounds and wheels (you need several going from course to fine) from a supplier that specializes in compounds and not just a "one size fits none" compound from the local hardware store, 2. don't overheat the metal by forcing it into a high speed wheel or you will end up with ripples that you cannot remove, 3. don't catch the edge of the part in the wheel or you will loose parts (they go into orbit) or fingers, and 4. draw a grid on the part with a felt tip and buff one section at a time
Charlie Stephens