I don't talk about WTA forehands, they simply create the rhs by taking huge swings and using the momentum. When we have a look at ATP, most of the players take the backswing by leading the elbow. That is done by a purpose. When you lead your backswing with your elbow, you automatically pronate your forearm. To strike the ball properly, you need to get your forearm back to its neutral position, so you need to supinate back. When you supinate, your racquet goes back and creates the position for a laggy forehand. I think this is where the effortless racquet head speed is created. Today i tried to make the supination as fast as possible, and i have reached massive racquet head speed. When your racquet drops the slot, facing the ground, it is time to make the supination. Your huge body turn and loose grip mostly does the movement, but i have experienced even more speed when i actively help the supination with my forearm muscles but i don't feel any stress, pain, discomfort by doing that. Maybe that is the active wrist action that Djokovic always talks about. Any opinions ?