Strange to be giving advise to an ace like you! I'm very impressed with your work. I'm an enthusiast, not a pro but i've used zymol for many years. First carbon, concours, destiny, and now vintage. Same prep, clay, polish, followed by hd cleanse . vintage applied with the hands, rubbing it in to your palms. small areas. leave on for only a few minutes. amazing thing about the wax is it gets better with time. I do another coat the next day. I usually wait two weeks to put on another coat. It really does look better as time passes. It also is very easy to maintain.