RE: What Was The Most Difficult Kit ?
Mine was the Comet rubber powered P38. 2 long booms and the fuse pod built on the half shell with pieces hand cut from printwood. Try to keep everything lined up when you had to splice the keel pieces together, then ad 1/16" stringers and try to keep things balanced, then assemble everything in alignment.
Having seen Dennis Norman fly his, though, I'm determined that some day one of the two kits I still have will fly.