Mitsubishi Diamana GT 5th Gen Wood ShaftOverview Some of White, some of Blue. If you've ever felt like you might need something in between our White and Blue, the mid launching, low spinning Diamana GT is for you. GT uses the stiffest handle section of any Diamana shaft profile and is slightly softer in the mid and tip section. Built with a bevy of premium materials including high modulus MR70 and high strength boron, Diamana GT can stand up to any golfer and still provide the smooth,