I have SIP 3.02 from Germany and don't think I'll ever use anything but that from now on. It worked magic on my black vette and finished perfectly with NO NEED for additonal polishing. However, there is a learning curve to it. Check recent threads on how to use it properly with an orange pad. You do not use lines of polish like other products. Use only two pea sized dabs and polish until clear. I have only applied this product with a rotory so don't really know how well it would work by PC. While I'm on the subject, I feel that I must get this off my chest. Many, many people on this site keep asking about the proper product to help them achieve awesome results. Yet they keep using a PC to apply polish. Polish requires heat to break down properly and this is best acheived via rotory. Polishing never came together for me UNTIL I picked up a rotory. Then everything changed and my eyes were opened. I know that there are many here who work wonders with a PC but for the majority of the rest of us the answer lies just as much in the tool as the polish. For me it's just this simple. My rotory does all my correction and my PC applies all my glazes and waxes. Stop being affraid of the rotory. It's what's holding you back!
Patrick