Originally Posted by PHMX
Do you have motor brake set to on on your ESC? It might torque roll when you stop the motor abruptly, if it's torque rolling even under more normal circumstances you might have a too light aircraft for that high KV motor indeed.
I tried that motor with brake on and off, it didn't, really make a difference. And the torque roll isn't real fast, like it snaps on you, it just slowly starts to bank over and you slowly start to correct until your at half stick or more before you realize that it is not responding and cut throttle. I think balsa elevons would have solved the problem completely. I never tried because I didn't Want to cut my swift flag version up (it looks to nice) but if I build the blunt nosed FPV swift II I will have to put on balsa elevons from the start.