John letters swingmaster fairway this john letters swingmaster fairway has the latest state of the art hyper steel faces to produce increased energy at impact for maximum distance and forgivenessa larger amount of the clubs head weight has been pushed further back this increases the moi moment of inertia to reduce club head twisting on off centre strikes for more accuracythe low profile design helps to get the ball airborne a lot easier from a wide variety of linesa smooth sole plate he