I like to experiment with different mechanics, grips and swing paths. My latest is the side spin backhand drive. I have always thought that you could generate so much racquet head speed on the backhand side if you really loaded the triceps. I used a semi-open stance, an Eastern backhand grip and a good shoulder turn plus I pull the racquet back a little further with my other hand to stretch out and load my back muscles. My hand is close to my chest, my forearm is parallel to the ground. This creates a 90 degree angle between my forearm and my upper arm. Now the triceps are loaded. On the start of the forward motion the racquet face is so far behind the hand. The triceps start to straighten the arm out to catch up which adds tremendous racquet head speed. The whole key is that the racquet face still lags behind the hand upon contact with the ball. The amount of side spin this imparts to the ball is incredible. I found I could really power through the stroke, hit a fairly flat ball and still keep it in with all the side spin using a fairly level swing path. Well I know no one is going to read and understand all this but I thought I would give it a try. You got to love the game.