I have the feeling that Nadal is particualy "loose" with his forehand compared to most other pros. The straight arm at contact to me is a result of his loose technique rather than a conscious effort. In the practice videos I have seen of him, he seems to rely primarily on body turn and his shoulder to "whip" his left arm into the contact zone and his left arm seems to me to be completely relaxed during the swing. I don't think anybody disagrees that the more relaxed you are, the more racquet head speed you can generate. The mega spin therefore, in my opinion, is due to this very relaxed technique; Nadal does not take his racquet any lower than most of the other pros, it is the fast swing and the closed racquet face before contact that makes the difference. The common conception that Nadal's forehand is "all arm" I think is not true. He primarily uses his body and his shoulder to "drive" his relaxed arm into the contact zone instead of using his arm strength to muscle into the ball. Actually, I think that Nadal's technique on his forehand is so unique that no pro players are even remotely similar to him in that department. Verdasco you can maybe make a case, but he chokes up way more than Nadal (which results in lesser "looseness") and hits way flatter on average. Yes he can come up with spin monsters once in a while, but never with the regularity of Nadal. Videos won't help, it's just a matter of sensation. But I will give one anyone to see if anyone has a similar feeling: http://www.youtube.com/watch?v=7MsHvZeyKgQ Feel free to disagree and give your opinions. These observations are based on his practice sessions (driving forehands) more than on his matches, where he primarily uses his reverse forehands, and I am not sure if they stand when he goes to the reverse forehands.