Just wondering if anyone else has had issues with taking their eye off the ball on the serve. I think due to having a fairly slow spinny second serve I'm almost anticipating the ball being back while I'm still in the motion, which is of course more of a problem with a fast serve. Is it true that you should watch the ball right onto the strings, even to the point possibly of keeping your head there a bit longer ala the Fed on his backhand. I was once told by a very good player and tennis mentor to "pick your spot, then watch the ball right onto the strings". I've also heard from a part time coach and tennis fanatic that studies show that when the ball is moving towards you for a groundstroke you can only track it to a bit before the strings. After double faulting my Saturday afternoon away, I found I could control the direction of my serve better focusing on watching it all the way to contact. I'm told golfers watch the back of the ball with their left eye (right handers). Any thoughts/useful cues that people might have regarding this topic would be appreciated.