Oh, I'm also experimenting with some permanent down flap on the ailerons to make a more curved airfoil. About 2 degrees. This seems to permit more stable slower flight although you cannot have a neutral elevator for level flight anymore. I'm not pushing the cg past 3.5" anymore either because that seems to make stalls and elevators harder for me.

I do trim the elevator neutral so that the elevator stick sits at the neutral detent during knife edge. You need to hold back on the stick a little for level upright flight, and forward stick a little for inverted. This setup makes slow rolls and KE easier for me.

20 deg flap allows really slow flight and steep level-attitude descents. Kind of like an elevator but the wing isn't stalled.

Clark