I'm in the middle of my first reverse water gilding sign. I bought the book. I bought what I thought was pretty much everything to get started....gelatin diamonds, tip, distilled water...etc. It was going great. However - once I backed with yellow chrome Ronan Japan colors...it wasn't strong enough and chipped once I was getting rid of the excess leaf. Then, I added quick-rubbing varnish to the Japan color hoping that would make my backing stronger for a different line on the sign. It really didn't. I just had someone suggest I back with 1-shot mixed with hardener. Any advice would be appreciated. Thanks! Who knew backing would be such a bitch?