Callaway Big Bertha Titanium Fairway Wood. New for 2006, the Big Bertha Titanium Fairway Woods Feature VFT (Variable Face Thickness) Technology for more ball speed off the clubface and improved efficiency of energy transfer from club to ball over a wider area of the face. The cast 6-4 titanium clubhead is slightly larger than the Big Bertha Stainless Steel Fairway Woods, with the same precision casting techniques and titanium technology used in the Big Bertha Titanium 454 driver. Ribbon weighting creates a high moment of inertia for exceptional forgivness, and an ultra-thin face delivers hotter performance for more distance and power.