I've just started with Heli's, flew planes for a short time years ago. With my CX2 I've been using the thumb method, and in the Sim I've been trying to learn the pinch method. I can't really tell which I'm better at, I'm pretty sure I suck equally with both methods. Everytime I see a pro doing 3D it sure seems like they are pinching which is why I am trying to learn that.
It's interesting to see how others are doing it.