As a player I couldn't care less either way. I find no advantage in having the measle ball but have no problem with them either.
I do like them as a spectator though and enjoy being able to see more about what the player is doing and how they hit the shot in the moment. I've always thought of them as a made for tv type of thing, nothing about them seems to be geared towards training.
I do like them as a spectator though and enjoy being able to see more about what the player is doing and how they hit the shot in the moment. I've always thought of them as a made for tv type of thing, nothing about them seems to be geared towards training.