"Prototype" series shafts are the most-popular of the House of Forged long-drive shaft arsenal, being used by more top long-drive competitors than any other shaft. These shafts feature MATRIX’s patented "HD" sixteen-sided hexdecognonal interior platform design technology. This produces increased bend in the butt-and-mid sections (to store energy away from the driver head), while adding more stability to the tip-section for a boring ball-flight with increased control over side-to-side dispersion. Based upon the fact that several top long-drive head companies are producing slightly heavier heads (which accommodate stronger shafts), there is an added a 285-cpm XXXX or 4X shaft flex to this series.
House of Forged Prototype Long Drive Graphite Golf