What is the consensus for prepping the surface prior to chemically removing fallout with Sonax followed by washing with a clay mitt? I'm in WI and last fall I protected with a layer of 845. This spring, I've been drying with the aid of Megs Quick Wax. I am wondering if I need to do any stripping of the protection prior to the Sonax to get the most out of it? My research has shown the best way to remove protection is by polishing. Still, I do have Gyeon Prep to replace IPA for removing residue/oils while polishing. Should I use the Prep prior to the Sonax, you think?