The 905S driver from Titleist is on the small side with a 400cc head, a full 60cc under the USGA's limit. That means the center of gravity is closer to the club face and produces a more driving ball flight than larger clubs. It's not the biggest on the block, but for players with higher swing speeds, it launches the ball a long way. It's available in lofts of 7.5 to 11.5 degrees with unfortunately fewer choices for left-handed clubs. Two stock shafts are available--the UST Proforce V2 75 and the "Speeder" manufactured for Titleist by Fujikura. The Speeder shaft has a very consistent flex and low torque.