That Bleriot is REALLY cool! I love the cable operated warping.

I had a Flair Taube; I agree that you could probably keep the rigidity of the main spars and find a way to make the trailing edge at the tip flexible. Even the Flair, which was a little better than the BUSA, only looked really looked like a Taube when it was up about 300 feet. It definitely could have used some independent roll control though. Even at altitude, you can see a hinge line, so it would be nice to make it bendable.

Let us know what you come up with.

Jim