I just spent 5 hours polishing my car with SONUS products. I used the SFX-1, then the 2, then the 3 and then applied the P21U or whatever the hell its called wax. The car and shine look great, but the car STILL has swirl marks!!! Its a black 02 altima BTW, I found a link: http://forums.offtopic.com/showthread.php?t=3199993 But seriously, what the hell am I doing wrong? I was using the PC on max warp speed, and I was putting some decent pressure on the damn thing (enough to bog it down a little bit). Is it me, or the crappy products im using?