The OPTM MAX is engineered to deliver superior forgiveness and a high, effortless launch to players who fight a slice. Two weights in the fairway's sole can be interchanged to fine-tune draw bias and stability dynamics. 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 MAX Fairway Woods Feature: Traditional shape/profile, high launch, mid spin Designed to launch it high and help eliminate the slice 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 (14g, 3g) allow you to fine-tune dynamics: heavier weight in the back increases stability with a slight draw-bias, heavier weight in the heel maximizes draw bias 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 Stock Grip: SuperStroke Crossline Black (Standard Size, 60R) Headcover Included Authorized COBRA Golf Retailer Specifications Club Loft Loft Range Lie Lie Range Length Volume Av