That when sawing dovetails, place the work so that it is at the same elevation as your elbows. That way, your saw strokes will automatically be level and the cut will be square with the edge of the board. I discovered this when trying out my Knew Concepts saw.
I always have been "body mechanics" challenged. I just never considered it.
Derek, have you addressed this in your writings.
Maybe some of you will expound on it.