Originally Posted by GenesisX
For the backswing of a two-handed backhand, should my arm (elbow) be straight and extended (or "stiff," like Roddick's or Moya's backhands) or should my elbow be bent? One might be better than the other for various purposes, and I'd like to know so I can start using the more efficient backhand.
Also, what is the optimal grip combination for a two-handed backhand?
Well, I wouldn't follow by Moya's or Roddick's example, as neither has a very effective backhand. By having you're elbows bent, it allows you more angles and greater power. I would do this, but I am no expert on two handed backhands, as I have always had a single handed backhand myself.