Also, I have dramatically improved the KE on mine but you have to go for it with you mixes.
I have a TON of up elevator to rudder mix and adverse roll coupling (Rudder to aileron) mix in it. With the engine upgrade to a 1.2 it will knife edge loop with authority also now that the coupling is better and I dont have to work quite so hard at steering the plane. Its not perfect yet, but Im getting real close to mixing it out.