As of late, I have been forced to use the !Semi-Western Forehand! grip on my serves. They may be flat as heck, but at least I can put some power on it. When using the Continental grip while serving, I can't hit the ball straight or with any power. Whenever I hit using this grip, the ball balloons, once and awhile over the net, in a crazy left spin motion. I can put absolutely no power on the serve. When I try to hit hard with the Continental grip it hurts my wrist. Any thoughts what has caused my grief?