As you probably know,the tour is currently played with no previews.
I understand that this decision was made in order to enhance the realistic nature of the game,but I think what's most important is to find the golden ratio between simulation and fun.
With no previews, at least in the 2D courts, the ball trajectory is sometimes very hard to read-especially its height.This results in footwork and position mistakes which could be avoided by applying the service & rally cross preview.
Most importantly, it can be very tiring and frustrating focusing on the ball so much.
Personally,I enjoy the game much more when playing with the cross and then it is so much more about tactics and strategy rather than seeing where the ball is going to at least get it in-play.
The cross is so discreet anyway that it doesn't affect the realistic feeling of the game.
Let me know what you think and how you'd prefer to play!