CALLAWAY EPIC SPEED FAIRWAY WOOD HZDS SMK 70High Velocity Ball Speeds Epic ball speeds start with Jailbreak A. I. Velocity Blades. We used A. I. to design a completely new Jailbreak system, which spreads and angles the Jailbreak blades. Along with stiffening the body, the new design allows the forged face cup to flex more. The result is exceptional ball speeds all across the face. Fast Ball Speeds Every model and every face in our fairway woods are uniquely designed using advanced A. I. Its a