Spaceclam,

I dont have any first hand knowlege about the Extras, but what I've heard from a few of the flyers at the club is that all aircraft will snap if too much evelvator is defelcted at too high a speed. The cap is Notorious.... I've had 3 of them.

Either mix lots of EXPONENTIAL into the elevator or fly with dual rates on when flying normally and switch them off when you wanna do 3D stuff!!