The best selling medium-pip in the world. 563 has a strange random effect on incoming spin. (Note: advanced players will know what the reaction of the rubber will be to different types of incoming spin). 563 has an odd off-speed hitting quality, and has the ability to deliver some topspin. Balls that are stroked will have the players intended spin, balls that are hit flat will sink with lazy or no spin, balls that are blocked will randomize spin to some degree for a moderate level of deception. If you are currently using short-pips to cover a weak backhand, or want to throw some deception without committing to a long-pip, give 563 a try.