Heff a lot of folks use Carnaubas over Polymers. Some say S100 enhances the appearance, of what a polymer already does. The only reason I use it, and its occasionaly, only cuz i feal like im "polluting" the poly, is to assist in eliminating the dust factor. I, personaly dont think it really adds anything. I could just wash the car the next day, or use a QD on top, the following day. But using something like S100 adds a little additional protection, and if time permits, Ill go for it. But as for enhancing ?, hard to enhance BF II, imo.....