One more point about the collective, partcularly in the R22:
Hold the lever normally, and stick your left thumb out to touch the seat. For cruise, the thumb is about level with the seat cushion. Climb, it is halfway up your thigh.
For hovering, keep your thumb on the seat edge, and just pivot your hand around this anchor point. This allows you to make finer movements instead of the big jerky bits you get if you rely on your elbow. It's like peeling a potato - you pivot the peeler around your thumb which is planted on the spud. Try to peel it with your hand off the spud and you'll take off your other hand.