RE: Engine mixture or top end pitch? ..or throttle??
i think allot of people who haven't progressed far enough along into 3D flying are under the impression it's allot like a model plane where you slam the sticks to the extremes, it's more finessing of the sticks with a heli and using all controls to their maximum efficiency. continuous axial rolling of a heli from one end of the flying field to the other is 95% cyclic, 5% collective (I'd guess less then a 4* total collective movement between + and - pitch) but watch most newbies do it and you'll see collective getting worked hard up/down and they are just holding in full left/right cyclic only.
kc