I've been wondering about the same thing, and I've seen my CPU opponents hit drive volleys very often, and some online players too, Voja for example. It would be nice to know how to hit it, because sometimes when my opponent mishits a ball it would be a good way to attack. Everytime I've tried it I only hit a regular volley, often a very weak one because there is no pace in the ball to begin with and also the ball is quite far from the net so it isn't excatly an aggressive shot. More like surprising and I've won some points with that shot too. So, if anyone knows how to hit a drive volley please tell us
And Gottfried, between the legs shot could be cool and I would like to see that one happen aswell