As she approaches impact, you can see that she has still managed to retain the leverage created by the 90-degree angle formed by her left arm and the clubshaft. It's not until her hands are almost past her right thigh that the "L" begins to unhinge and the stored energy whips the clubhead into the ball. This is a perfect example of how a good player keeps his or her hands ahead of the clubhead until the very last moment before impact — and it's exactly the move you need for maximum power.