Getting ready to do a swirl removal (which isn't bad) on a balck car. Planning to start with IP. Here's my question for consensus following IP: FPII or ZPC ?? I then plan to use 3 coats of Z5Pro. I already have both IP and FPII but I've never used it on black (only Silver). I've read lots about how difficult FPII may be to get off in higher humidity (I'm in Phila, Pa area). ZPC seems to be getting some good reviews though I don't want to spend any more $$ if I don't have to. Thanks for the input