Kokutaku 110 with Chinese Sponge has a strange random effect on incoming spin. 110 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 pimple to cover a weak backhand or want to throw some deception without committing to a long pimple.
This version has the Harder Chinese sponge, which is faster and less spin