Originally Posted by 3fees
If your running in on the shot, hitting the ball with wrong foot forward, lessens power, and is used to go to the net..As to the grip this is not critical,its the finish that counts.
hopefully you understand what a running fh being discussed is. once you do and watch a lot of pros past and present executing this shot, you'll realize invariably their opposite foot of the racquet arm steps forward not toward the net but toward the ball most often toward the side fence as the contact is made. this shot is not too difficult for E grip, not easy for SW grip, and almost impossible for W grip. one of the few current top pros using SW who executes this shot reliably is djokovic.
one of the effective tactics playing against SW and W players is to pull them wide on their fh precisely because this shot is difficult for them.