Purely for personal use at this point... I've got two black cars, one of which has sustained some swirl marks and water spot damage and the other is in pretty good shape. I've had a PC for some time but only used it with the included foam pad, which appears to be pretty much a finishing pad from what I can tell. I just ordered an assortment of the curved-edge 7.5" pads with a 6" backing plate. I've got the 3M swirl remover for dark cars which I'm hoping will be enough to get through the damage on the one car, and I also ordered the Jeff's Werkstatt prime/jett pair. But I'm not sure if I need a polish to run after the swirl remover (or if there's something else I should use instead) and before the Prime. Am I missing something here?