I'm currently using Zaino on my red car. This stuff is gives me a nice shine, compared other products i have used. I have been reading all these good things about the S100. I really want to give it a try. I want to know how well it will do IF i applied S100 ontop of the pre existing Zaino. Also how would that compared if i stripped off all the zaino and reprep the surface for the S100 clensor and wax.