Pat, not trying to hijack the thread, but there is a design you did that I have always wanted to build - the profile Gee Bee R-2 you did in the May '96 Model Aviation.
How much would a kit of this design run, and have you considered scaling it down to fit into the 502 series? Oh, and what about an electric version of both?
If I can ever scrape together enough funds, I would greedily snap up both a full size version and a 502 series version.
Steve