I am trying to learn how to serve, but it seems that when I attempt to serve I can feel that I am pulling on the muscles around my right shoulder blade (my playing arm is right). It can get slightly sore after awhile. Also the ball sails long and too far left most of the time. I am trying to follow the instructions of FYB, but have difficulty with basically most of the serving motion i.e. transfering my weight onto the balls of both feet and doing the knee bend, doing the racquet drop right after getting into the trophy pose and at the same time pushing off the ground and swinging forward to hit the ball. It just feels awkward to me. And I know you are supposed to land on your left foot, but I tend to 'want' to land on my right? When I force myself to land on my left foot my right seems to swing outwards to the side instead of just moving forwards. What am I doing wrong? Any advice would be much appreciated, thanks!