Weaker in what way? It's a completely different ball. More angular than a ZC. MUCH stronger core. As the prior respondants have said, it works better on medium to dry lanes, and up the boards, and it hits HARD, just like it's sister, the Maximum Velocity. The Maximum can handle more oil, and is not angular...more of a middle to late arc. The Maximum is my favorite ball, and the Velocity is a great complement to it.