For graphite extensions what we really need to know if the inside diameter measurement at the butt end of the shaft. We do not have that measurement for the Titleist Diamana M+ Red hybrid shaft. On Titleists web site they list the shaft at 57 to 61 grams depending on which flex you have. If it is a .600" butt diameter, Titleist does not list the butt diameter, then it would likely use the USGE extension.
Date published: 2017-05-04