At my detail shop I have settled on the twin head cyclo random orbit polisher made in Colorado. Almost impossible to to burn or ruin any paint with it. I start with yellow polishing pads and use 3M perfect it step 1 polish. Then I work to green pad and #2 polish and white pad and #3 polish. Leaves a perfect scratch free surface. I like to use Zaino all in one polish next. It leaves protection and shines great. The cyclo polisher is what the Air Force uses for their planes and is also used on Air Force one. It is much easier to handle than a single head polisher and never leaves a swirl mark.