Yeah, I've used the clear a lot, but I always have to give it the touch test, and when a reasonable touch without too much pressure doesn't leave a fingerprint, then it's done. If you do leave a light print from the touch test, it usually goes away. Strictly sport plane stuff, I think. I use it on my stunters, but after the initial beauty of a finished model, I usually don't much care what it looks like. The Lustrekote on my Yak is still beautiful after a few years though. It spider webbed on the Shoestring, and I think that's because I laid it on too thick. And punished it learning the beginner pattern.
Rusty