The STX Surgeon Sc-Ti shaft has been a winning combination at an amazing price point for about 9 years running, due to the simple graphics on a smooth finish. Coming in at only about 5 oz. this shaft is pretty much on every high school and college field. The Sc-Ti combination stands for the combination of scandium and titanium. The titanium shafts were strong like steel pipes but could only be used by the biggest players. As shot speed and head stiffness increased, scandium emerged as one of the lightest shaft materials, but guys were snapping them all the time. STX came up with this winning mix and it has simply dominated the metal shaft market for all this time.