When a pro sees a paceless ball, he usually goes for the winner like he would a serve. In a way a serve is like hitting a high paceless ball. In theory, a paceless (and spinless) ball should be the easiest to handle. You should be able to change direction and add pace at will. However in reality, a paceless ball is hard to handle and many people like pace. My question is how come most people have no trouble serving a paceless ball but the same people have so much trouble hitting a paceless ball in a rally? Is it a matter of confidence?