"The re-engineered shape and thinner and upgraded forged cup face make the HL4 fairway woods speed machines that truly earn the name Hot Launch"- David Glod President, Founder & Master Club Designer LIGHTER FORGED STEEL CROWN An all new shape and a thinner and lighter 17- 4 forged steel crown produces a faster clubhead speed with a lower CG REAR SOLE WEIGHT An added weight produces a higher MOI and an easier launch. More weight in the rear sole, created by the new weight in the back of the clubhead, moves the center of gravity deep in the head for an extremely high MOI. The MOI increase is similar to the 12% MOI increase employed in the HL4 Driver. Moment of Inertia is a measure of a body’s resistance to angular acceleration, or twisting, meaning that the HL4 fairway wood is more stable. This increased MOI will increase club and ball speeds on miss-hits and will keep shots straighter. VARIABLE FACE THICKNESS Variable Face Thickness technology provides greater distance from more contact points on the face that results in better off-center hit distance. POWER CHANNEL The Power Channel on the sole of the club behind the club face is wider and deeper for better weight distribution and increased face flexing. The Power Channel delivers amplified ball speed and less spin, as well as added forgiveness on shots struck lower on the face. SHALLOW FACE, LOW CG A shallow face design and low CG in the HL4 fairway woods deliver a high launch with low spin for maximum distance.