TWICE! hehe. Im a fanatic what can I say. I bought the P21S kit, so I could sample there products, see what I think. So I went through the whole regimen whith just there products first, pretty nice, I was impressed, very shiney. Happened to rain that day too, so I could test the beading qualities of the wax. Thats one hell of a wax, I have to say. Well after about two weeks I decided to try my way. I used there soap and wheel cleaner. Got everything clean as could be. Then I applied the Gloss enhancing paint prep, like a non abrasive polish. Applied two coats of Zaino. Let those set for a night. Then applied one to two coats of wax that next day. Looks pretty nice now, wish I could show you a pic, but I dont my digital camera at the moment. Good stuff. When I feel like spending the money I might try Surluster and Pinnacle wax, see if I like them any better.<P>