I think I may have decided on a build for this contest. I want a gentle low-wing trainer that flies nice and precise and doesn't feel "sloppy" like my Stick, which has such light wing loading it is physically incapable of flying in a straight line outdoors without constant control input.
@The Hangar was bragging about his F7F, I like the idea of a gentle twin but obviously I can't enter his and I'd prefer something a bit easier to store, so I think I might build a de Havilland Mosquito at about 35-40" wingspan. It seems with a little bit of engineering I could make it fly really gentle.