The Callaway Big Bertha 9 wood boasts a stainless steel club head. It features a larger head, shallow face and high launch angle. Its aerodynamic sole reduces drag and lines up with little rocking. The heel features Callaway's S2H2, Tru-Bore hosel design, which helps increase discretionary weight by shifting it to the overall perimeter of the club head.
The face of the Big Bertha 9 wood also features a slightly longer hitting area than those on traditional fairway woods. The VFT (variable face thickness) shallow face brings a 57.5-degree lie at address. The face also features a low leading edge, aiding in getting the ball up from a variety of lies.
The righthanded Callaway Big Bertha 9 wood's Uniflex shaft option comes in the form of the Callaway Big Bertha steel shaft made by Nippon. The shaft is made with a D4 swing weight and 41.5-inch length.
With its simple design and strong and noted Callaway features, the Big Bertha 9 wood is a nifty club. It gets the ball up nicely from the fairway and rough. Fitted with the steel Uniflex shaft, the D4 swing weight allows for some aggressive swings and shot shaping. The club is comfortable at impact and forgiving with its long and responsive face.
Although the 2007 Big Bertha line of fairway woods has been replaced by more recent models, the popularity of the Big Bertha line of woods means they are much easier to find used than many other old models. However, the rarity of 9 woods in general means that these clubs will be harder to find than more common woods, like 3 or 5 woods. Searching online used golf equipment dealers is your best bet for locating the 2007 Big Bertha 9 wood.