Product description proforce vts shafts with research confirmed that the relationship that feel has to torque is infinitely more complex players who thought shafts were stiff or soft were not necessarily feeling the flex or weight but were actually feeling torque and when players are matched to the proper torque shaft ball speed increases of up to 6 mph with dispersion reduced up to 30proforce vts is turning traditional shaft fitting upside down by not isolating shaft performance to swing