Re: Lefties...
Let's not confuse holdingthe cyclic with the left hand (which is a common occurrence), to be able to flick switches etc; and flying the cyclic with the left hand which is very very difficult indeed (in fact, for nearly everyone, it's impossible!).
DON'T try it unless you either have a safety pilot and dual controls, or you're prepared for a nasty surprise.
Whirlygig - collective (up and down) isn't that much different from the tiny cyclic movements one makes in the cardinal directions when talking about ambidexterity. The bit that counts is when co-ordinating all three controls together.
Welcome aboard Hairy.