One of the most common mistakes players make is thinking that doing more will yield a better result. In tennis, often times, it is to the contrary. Trying to swing bigger, hit harder, and play stronger doesn’t come from “doing more”. If you want to hit bigger, heavier, more penetrating shots the key is to RELAX. You want to keep your upper body extremely relaxed. This will result in more racket head speed which will add speed, spin, and depth to your ball. The relaxation starts in the finger tip