Adams Speedline Fast 12 LS Driver The Adams Speedline Fast 12 LS Driver gives golfers the advantages of adjustability and aerodynamics for optimal ball flight, spin and distance. By adjusting loft/face attitude, lie angle and length quickly and easily, this driver can deliver the players preferred distance and performance. Adjustable for loft/face attitude, lie angle and exclusive shaft length adjustments, this clubs added 0.5 of length increases ball speed (1 mph), increases launch angle (0.5 deg) and adds carry distance (5 yards). The lower spin and more traditional shaping is aided by the Fubuki Alpha Shaft with MD (Modulus Differential) Technology.