Hi All, A buddy of mine pointed out to me that I was jumping and swinging my racquet up at the same time during the serve. I would seek the community's opinions on this. Is this alright? When both my feet are off the ground, my racquet is pretty much squared and in position to contact the ball. When I watch Federer's serve, his racquet is still at his back when his feet had just lifted up. Any tips on synchonizing or delaying my swing?