Many times you don't even need to pull back, especially with anti and dampening sponge. All you have to do is lessen the grip pressure. Hold the blade so loosely where it's about to fall out of your hand and the ball goes back very, very short! What the OP is worried about is when facing no spin balls. Grip pressure doesn't really help there, because there is no spin for the anti to work with. I think what you need to do is either play it short and to an angle, or learn how to attack through the ball with the anti. The key there is not to overhit, just use a bit of forward swing through action and a bit of upward brush-hitting.