The traditionally shaped OPTM X, Cobra's most balanced fairway wood offering, is engineered to deliver the perfect blend of speed, stability, forgiveness, and versatility. Two weights in the fairway's sole can be interchanged to fine-tune launch, stability, and spin characteristics. MOI, or "moment of inertia", is the term the golf industry uses to measure a club's stability and forgiveness. When a mishit occurs, the club head rotates around the ball, causing the face to twist open and push a shot offline. The higher the MOI, the more stable the club is, and the more resistant it is to twisting at impact. Cobra's OPTM family of metalwoods and hybrids is the first to optimize the club head for POI, or "product of inertia." While MOI measures stability in both horizontal and vertical directions, POI measures stability diagonally. By optimizing both MOI and POI using advanced supercomputing to strategically position weight in the head, OPTM delivers dramatically increased stability and forgiveness. Cobra's testing supports that claim, with OPTM producing significantly tighter dispersions, meaning longer and straighter mishits. COBRA OPTM X Fairway Woods Feature: Traditional shape/profile, mid-high launch, mid-low spin Versatile offering designed for speed and forgiveness A.I. optimized for MOI and POI for maximum stability and forgiveness, resulting in reduced side spin, a tighter dispersion, and increased accuracy 2 Interchangeable sole weights (11g, 3g) allow you to fine-tune dynamics: heavier weight back promotes a higher launch and more forgiveness, heavier weight forward promotes a lower launch, reduced spin, and a penetrating ball flight FutureFit33 hosel system offers 33 unique loft and lie settings for more fine-tuned customization options (loft and lie can be adjusted +/- 2� independently; SMARTPAD keeps the face angle square in every setting) Stock Shafts: Mitsubishi Kai'li Dark Waves Red, Mitsubishi Kai'li Dark Waves Blue Stock Grip: SuperStroke Crossline B