The other way to look at it is that with the S1223 you can ( and should) build a wing of restricted area. In this case a trade study would determine the wing area. That is what the ETS team that I flew for did. I'll have to re-read their report to see what factors they based it on, but it was a good sized wing, 14 ft x 18". It would get off the ground when I rotated it, then I'd let it speed up before trying to climb. It definitely would've pigged along in ground effect if I tried to fly it at liftoff speed the whole flight.

Funny thing was, with the highly cambered TE, the ailerons were overwhelming the servos, and floating upwards. They'd float high enough to easily see the problem hundreds of feet away. I wonder if that improved my climb Cd. It sure didn't help roll control, that's for sure.