I have never used humbrol paint but I am familiar with the Jupiter and I would suggest trying a test strip of the paint and coat it with Clear fingernail polish, cheap and easy to find. And if you wipe the pilot off after each days flights you shouldn't have any problems.

I don't know if you are a regular flyer or new at it but I think you will like your Jupiter. I just lost mine because of a broken linkage after about 5 years. It was probably my fault as I really flew the crap out of it and probably over stresed it, one of my favorites.

The Jupiter is an ABS plastic plane and the pilot figure is molded right into the fuse, ( open cockpit ) a real nice touch by the Italians.

ENJOY !!! RED