Originally Posted by Foodle
I think you're misunderstanding what people are saying about having the wrist overhang the top of the wheel with arms fully extended. This is a check to make sure that when driving, the arms are NEVER fully extended. If at full extension, your wrist overhangs the top of the wheel, your arm will be bent when gripping the wheel at all times. No one is suggesting driving with the arm fully extended at any point.
Good point. In the video above the instructors arms are bent a bit more than mine normally.