ORIGINAL: braddock VC
Hope these ones come through, if you look carefully you will see that the horns for controlling the upper ailerons are pitched differently than those in the lower, driving, ailerons.
Braddock, the diference is pretty much notorious, maybe will result in a not so agressive spin. I think that right and left ailerons are even, then there are not much aileron differential there, you may check the degree of deflection , up and down of the bottom wing.
The upper wing will give more authority on turns (spins, or rolls) anyway is a very nice Ultimate and I hope to hear about the next flight, kind of historic isn't it?
Best of luck.
Alfred.