It's hard to say, and it may depend on what the player's best tennis is about. The problem with repetition is the possibility of practicing the wrong technique or bad form. The problem with good form is that when you're on the court, you rely more on instinct. Not to mention, tennis is mostly a game of repetition. With that last part being said, maybe the answer is repetition?
1 month ago | 2
TK Tennis
What's more important to play your best tennis, Repetition or Good Form? Video on this subject coming soon.
1 month ago | [YT] | 2