Prototype Mitsubishi shaft at the U.S. Open

Mitsubishi shafts are used by some of the game's best players, including Tiger Woods and Phil Mickelson. At the U.S. Open, a prototype Mitsubishi shaft was seen being used (photo courtesy of golfwrx.com). The shaft, which is black and white with white stars, is a next generation Fubuki that is set to formally debut later this year.

-- E. Michael Johnson**Follow on Twitter @EMichaelGW