I built the Invader as a kid when it was first released. I seem to recall only lightly painting it with fluorescent spray paint. It flew great, and had perfect, circular glides back to the ground. Future builds of Invaders as an adult were not good. And I probably made them too heavy trying to put a nice finish on them.

A friend of mine built his with no dihedral. Flew fine, but glided back upside-down.

I guess the inexperience of youth was extremely beneficial ...

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Lee Reep
NAR 55948

Projects: Semroc Saturn 1B, Ken Foss Designs Mini Satellite Interceptor
In the Paint Shop: Nothing! Too cold!
Launch-Ready: Farside-X, Maxi Honest John, Super Scamp