I've been a member for a few years, I don't post much (usually when I need help), but view threads frequently. I have a '06 BMW M3 in Interlagos blue, this is the first darker car I have had in a few years and I'm getting very fustrated w/ swirl marks. I've been using zanio and love the shine and clarity it leaves, but as everyone knows is useless for removing swirls. If I use a polishing compound to remove the swirl marks, then wash w/ dawn, is this good enough to remove all the compound I just applied, or do I have to go further? Also, is there a product that will give me the same results as zaino, but can be used w/ a PC? Last question, I used to use Griots garage products a few years back on my previous M3 and was very happy w/ the results, should I consider switching back? Thanks in advance.