Terra Forza Golf is the revolutionary shaft fitting system that uses objective data produced from the Ground Reaction Force Pressure Mat and integrated with OnForm Video Analysis to determine the proper golf shaft for every golfer. Our shafts are Powered By ACCRA maximizing distance while optimizing dispersion. The Terra Forza Golf Shaft Fitting System's proprietary algorithm (patent pending) takes into account the golfers mass, horizontal speed, vertical forces and braking power at key points during their swing to generate a "load factor", succinctly corresponding to the 5 Terra Forza uniquely designed shafts. In addition, Terra Forza's proprietary developed trimming instructions allow club fitters to intelligently identify nuances that optimize load unload patterns for maximum energy transfer at impact.