John: Interesting story of your modeling career. Does sound like you are a collector. with 42 engines. We flew lots of Senior Falcons, and they were excellent, easy to build, easy to fly. Sorry - I don't know of any books on finishes - just the articles that have appeared from time to time in the model magazines. I run all gasoline engines, so I finish with most anything - no need to fuel proof any longer. It's the only way to go!