I know there are a lot of posts on this topic, but what is the best/quickest way to learn the topspin serve as a 2nd serve? I would like to start out with the topspin serve and eventually move to the twist. Does anyone know a step-by-step way to learn the topspin serve? Any previous threads? I seem to struggle with the concept of hitting up. I read that you should try serving from your knees, or serving from behind the fence into the box in order to learn how to hit up. Does this help? Thanks!