Kinetics Hypersonic S30 Callaway -2° sleeve installed, 46-inch finish, a long drive shaft. I used it with a 4.5° head to achieve a 300-yard drive with a head speed of around 45. This shaft definitely helped me get the ball airborne, something I couldn't do with a Diamana WB 46-inch shaft. Although unofficial, this shaft was used by Kyle Berkshire when he achieved the world's longest drive. The flex is surprisingly straightforward for a long drive shaft, making it easy for anyone to use. Please consider it. I am accepting questions and price negotiations, so feel free to ask if you are interested.