If there's something I struggle against, then it's raw power/pace of shot.
I used to just blast the ball, but I've learned to try and stay in the rally more, use slice. Must admit I liked playing with a gung-ho attitude.
Your dad looks bored out of his mind.
I would be interested in recording my service motion, I think I foot fault all the time.
We'll take the camera down when we go, foot faulting is easy to rectify.