Originally Posted by markzolotoy
That it is not relevant to ballís bounce. I think if we would hit from the air then your statement would be correct, but because bouncing significantly changes ball's flying speed and time I think it's a good idea using bouncing to start swinging a racket.
Safin starts swinging the racquet long before ballís bounce. So, according to you he does something wrong. How should he correct technique of this particular FH?