Chip, it's easier to give you some do's rather than don'ts when using the rotary. Keep your pad clean and primed. If you let it run dry, or overload the pad with caked polish, you will feel the rotary start hopping. Work small sections 2'x2' at a time. Keep the pad as flat as possible when polishing, on my final pass I will slow down to about 1000-1200 rpm and lay the pad flat to the surface to prevent holograms. Let the pad flow freely across the surface. This is more of a "feel" thing that you will acquire with experience, but you'll know it when you got it. This is especially difficult on vertical surfaces. Try to follow the natural direction of the polisher and learn how to make passes without having to fight the polisher. The rotary is a much more accomplished skill than a PC, it takes time and experience to master it. The only way to really learn it is to use it. Most people learn by working on a junk car, and this is a good idea. I learned by working on a friends beater car. You can also go to the junk yard and pick up a body panel to work on too. Hope this helps.
