I have a problem with my forehand concerning hip and shoulder rotation. I have a good unit turn, and hit open stance with a windshield wiper motion. When i rotate my hip and shoulders into my shot i feel i am losing racket head speed and momentum. But when i just conciously try to stay sideways and then just hit through the ball only with my SHOULDER it feels i hit through the ball more and get more power and see that i am STILL USING upper body rotation. Is this how it should be done and feel?? :-?