When I was a kid (and some question whether I still am), I was a big fan of the SUPER BALL®. For those who don’t remember, it’s that plum-sized, brightly colored rubber ball, that takes crazy ...

The kick serve separates decent players from very good players. It’s not hard to understand how to hit it, but it’s difficult to do it well and consistently. A great kick jumps up at the returner. A ...