So.. with the new rudder design you were doing tight ke loops? I guess you were not dealing with any roll coupling on the high and low end b/c of that new design?

Also.. you were correcting the pitch coupling using just flaperons? I guess so you just would not have to correct as much? It certainly would not do it on it's own as is the idea behind rudder to elevator mix.. right? The rudder to elevator mix however I have never gotten to work for the full loop, but, I have not played with it enough to have it right at every speed either. I suppose I could turn on my flaperons along with my rudder to elev mix so the corrections would not be as large on that side of things.

The elevator would not be such a big problem though if I could get it to quit roll coupling on the top and bottom of the ke loop.

It is like a huge foamie on its rudder.. amazing authority there.