I am working on re-shafting a set of Cleveland Launcher HB irons, and purchased UST Mamiya Recoil 680 SC shafts, which have a .370″ tip diameter. These are too large for the hosel bore of the iron heads. The factory shafts were True Temper Dynamic Gold DST98 S300. Anyone know what tip diameter I need? And going forward, what is a good reference to find this information?