I have a question. Can i make top side and under side serve with exactly same racket angle on my pendulum serve? My serves have a lot of spin but they are easy to read. If that's possible please give me some advice so I can improve my serves
Good recommendation Kuba - I find Matt's videos some of the best for explanation
I really like his serve tutorials. They helped me a bunch. He does not show how to properly practice those serves, but he explains the mechanics of varience very well.
I still get fight with muscle tension issue locking my wrist messing my serves, but his videos helped a bunch with many aspects.
I would say that his description is excellent in terms of the spin variation.