A shaft that is too long or too short can have an adverse impact on executing this basic fundamental. Without a doubt.
Many golfers putt poorly because of poor technique.
Their eyes are outside or inside the target line, the putter is not level behind the ball, and they don't make a low and level stroke through the ball. Obviously shaft flex is not an issue when making putting strokes, so this shaft has an extra stiff flex. T-108 GR model is very low in order to create more feel of the head for better stroke control. The cavity center design provides superior heel-toe balancing and a dead center sweetspot. The graphite shaft T-108 GR model feels only marginally lighter than the steel models.