Aussie poster here, came to read what was new in the SBS having done 2 levels and hoping we have some of the special machines when I do my third
I don't have a particular fear of one side or the other, but I am quite aware that my body position is significantly different between lefts and rights.
In lefts, I have noticed that my right forearm is usually brushing against the top right "corner" of the tank. In rights, my forearm is usually not brushing the tank, it is a few cm above and outside it.
The reason for this, I think, is to do with throttle control. I'm quite tall, and in rights I feel like my right arm is squashed up behind the throttle. This feeling is a barrier to relaxing my right arm, and that keeps me a little more upright. In lefts, my right arm feels unconstrained behind the throttle, and quite comfortable.