Originally Posted by sureshs
If a player has good swing speed, control, and body rotation, much of the across swing will happen automatically. It is no point forcing it without having the prerequisites.
A WW forehand has nothing special to hit... it's just about pronating your forearm, but, of course, it has to be done properly. It's not that it would cause injuries, it's more that doing it wrong doesn't help your stroke at all.