Trajectory Tuning Technology allows you to hone in your launch angle and spin rate to increase distance. When adding loft, the face angle closes slightly; when subtracting, the face angle opens slightly.Its straight-bias head rotation promotes square impact, and the Anser's low-spin design minimizes left or right curvature to help drives find the fairway.The body of the traditionally shaped 460cc head is centrifugally cast into a complex, variable-thickness geometry from Ti 8-1-1, a light, low-density alloy, which yields extra weight that is redistributed to increase MOI on both axes. External sole weighting positions the CG low and raises the MOI, which provides a mid-high launch that adds to distance and forgiveness. There is an Aldila Phenom 50g stiff shaft and is set at 10.5 degrees.