Talking about the deep topspin moonball. I saw this video online and thought that it might be deadly if used properly. The ball explodes off the ground and it is hard to take on the rise, or hit a winner off. This moonball Seles hits against Evert is remarkable. http://www.youtube.com/watch?v=DfrUVH6MBwk As good as Federer or the men on tour are, how do you attack one of these underrated shots? Can't see anyone hitting a winner 10 to 15 feet behind the baseline out of the center of the court.