Originally Posted by bhupaes
I think you are mis-reading my post. "The flip" is a term that evolved on this board (or maybe it came from somewhere else) to describe the quick arm motion Federer and other pros seem to be making with the arm to point the butt of the racquet towards the ball before pulling it forward. It applies to the whole racquet, which goes from pointing partially sideways to pointing backward (as it should, before the forward swing starts). It is definitely not a "flipping" of the racquet face!
I did misread your post. I still don't think the flipping motion is any more abrupt than any other part of the swing though, even though it isn't the one I thought you were talking about.