The Verdict: Continuing an idea first seen on its C200 irons, the oversize D300 uses a series of "power holes" around the perimeter of the topline, toe and sole to create a more flexible face. The holes reduce the contact area between the body and the face to just 26 percent. In other words, nearly three-fourths of that area is occupied by the holes. The result is a face that deflects more (about 16 percent more than the D200). Another benefit of the holes: They remove a significant amount of weight. The saved mass was moved to the heel and toe areas to enhance stability.
Loft: 7-iron: 29.5 degrees; PW: 43 degrees
Street Price: Set of eight/graphite: $900