Caution, Cees, that's a daring theory! All full-scale airplanes have both ailerons coupled and still use weight balance (likely to dis-tune them and prevent flutter). Besides, the ailerons you show on your Orion seem to be modified Frises, just like the Cessnas have because they are so simple and easy to build. BTW, to me they seem to be a rave of the 1960 like the swept rudder.

Evan, it would be interesting to know the 1960 article and Ed's thoughts. AFAIK, he placed high in the late 1950s nationals with an Astro Hog. Seems to be obvious that he just enhanced it giving the Orion, as he later enhanced the Orion giving the Taurus. I think all designers tried the same design elements at the same time, some of them (Ed for instance) finding the best combinations and dimensions and becoming champion, later displaced by others.