The AGSI+ insert features 14 polymer-filled grooves in the face Golf Clubs for Sale that "hold" the ball briefly at impact to negate backspin and promote forwardspin for a smoother roll and more accurate results. The AGSI+ insert also delivers superior consistency in forward roll on off-center hits, something not shown in tests of other popular putters. All at http://www.24golfstore.com/ 20110614