AeroDave and Chevy,
Good post! I love to design and scratch build also - especially since it gives me a chance to put forth ideas that "fly in the face" of the usual stuff we see out there. You are right on track with the low aspect ratio wing ("Big Square Wings") being the most stable in high alpha. Even QQ Somenzini is stating in his recent ads that placing the "center of lift closer to the fuselage" is the solution to stable high alpha. Nothing new but the popularity of those long tapered wings are hard to fight. My big square wings are a breeze to elevator and harrier around. And, nothing I can do will make one tip stall at any speed.
Chevy's views on fuselage length and construction are almost identical to my own (shameless plug) Talon F1-P. I'd love to see your Decathlon too - great to hear that the high wing aerobats are not forgotten. Did you see the 1/3rd scale clipped wing Taylorcrafts that were at the Joe Nall Flyin last year? They blew us away with their IMAC quality preformance in a classic high wing design.
Chris
www.goldeneagleaircraft.com