Myth #0:   is the ball compressed when only hit to sweet spot?

Myth #1 :   Does forehand look the same among pros?

 Myth #2:  timing is important for hitting a fast forehand,  but how to explain 83 mph forehand without any timing?

  Myth #3  :   Shoulder role?            

 Myth #4:  Can 1980s player win 2000s players?  is modern forehand better than classical?

Myth #5:  Open stance vs. close stance, which one is better?