RE: Thumbs or fingers?
One thing I've found myself doing on occasion is flying with my thumb on top of the elevator/aileron stick (right stick) and my forefinger 'in front' of the stick. Sort of a modified pinch method. I seem to fly that way at times, and change during the flight depending on what I am doing.
I'm sure most of us have some personal way of flying. I was taught with the pinch method by a pattern flyer, and a gentleman that has been flying for 34 years. But, as I said, I seem to have developed my own way. And, as most have said, I don't think that there is a right way or a wrong way. Whatever works.
Hey, if it ain't broke, then don't fix it!!!
DS