Because raising the center of gravity helps produce a lower launch with more spin. That's exactly what better wedge players look for when trying to control trajectory, attack pins, or check up from tight lies. In other words, the Spin Pocket is a deliberate design feature that gives you more control over trajectory, spin, and how the ball reacts when it hits the green. Callaway Opus SP wedges feature Spin Pocket Construction for lower launch and added spin. Grooves That Don ' t Let Go Callaway didn't stop with reshaping the head. The company also overhauled the face with Spin Gen 2.0, the most advanced wedge face in Opus history. A sharper 17-degree groove angle and tighter spacing create more edge contact, and a deeper laser-milled crosshatch pattern increases friction. The result: consistent spin across different lies and shot types.