the ailerons are such that i don't think they would anyway, the elevator and rudder is more "funfly" but i've had a few fast passes on my 50 and 13x4 with no problem even tho i don't think my 4mm carbon elevator joiner makes the other side as stiff as it could be with the 3mm metal one.

define twitchy for you, i can do huge smooth loops on high rates by just breathing on the elevator, but thats how i like it, flick rates on for pattern and it's smooth as you like. think my CofG might still be too far back too.
if i took i guess i'd say the 3D comes from the size and throws of the tail surfaces, but if only moving them slightly it's a patternship. which comes from the depth and lenght of the fuz + the overall shape