The TaylorMade Fontana Ghost TM770 putter features TaylorMade's patented PURE ROLL technology. Under the the advisement of PGA Tour coach and TaylorMade Tour Staff professional Dave Stockton, TaylorMade’s PURE ROLL face inserts solve two common problems with standard putter launch performance. The first pertains to the loft of the putter face at impact. At impact, the loft of the putter face (typically 4°) lifts the ball off the ground and imparts backspin. When the ball lands, it skids and bounces before forward roll and constant ground contact begin. During this transition, from linear movement to rotational movement, the unpredictable nature of the skid phase of the putt can easily throw the ball off the intended line. Bouncing causes lateral deviation, which leads to missed putts.
Secondly, when effective loft is too low, the putter cannot sufficiently launch the ball cleanly from the depression it rests in on the green. The ball is driven forward or downward into the grass sitting immediately in front of the ball, causing the ball to bounce. Bounce steals momentum, so the ball rolls shorter than intended. Bounce can also cause the ball to deviate from the intended target line, especially if the ball should hit small imperfections on the green.
The TaylorMade Corza Ghost putter's PURE ROLL insert is specially engineered to bring the grooves into direct and active contact with the ball during impact, even on short putts. The grooves in the face also serve in part to strategically soften the insert’s structure. Together, these factors make the insert deform at impact, putting the grooves into direct contact with the cover of the ball. In summary, PURE ROLL inserts help to reduce skidding, promoting precise line and optimum speed control. The result is a smoother roll and better overall performance on the greens.