Major winner... Check. The Super Stroke Flatso is the weapon of choice for superstar Jordan Spieth. These grips feature a revolutionary pentagonal profile and utilize Superstroke's patented No Taper grip design, which promotes even grip pressure, eliminating added tension in the wrist and forearms. This helps the arms to swing freely, further enhancing a pendulum putting stroke. This patented pentagonal shape allows for increased repeatability and consistency due to its wider flat-front and multiple edges.