I don't believe it is. PFW is not as aggressive as foam cutting pads like LC yellow or DAS white pads and I've often gone from IP on DAS white or orange (which I think is similar to LC orange) straight down to FPII on a finishing pad with good results.
However, I do this with a UDM (spd 6 w/ IP; spd 3-4 w/ FPII) on comparably soft metallic black Toyota paint.