I’m pretty sure that club came with taper tip True Temper shafts, which means at the tip it would be .355. (If you measure above the ferrule, it could be .365.) If you pulled the shaft, then I’d get an exact measure on the hosel bore. It’ll be either .355 or .370. Then order and install shafts accordingly. If it is a .370 hosel bore and you want to install a taper tip, Golfworks has a special shim, the SHIM-T designed to be installed in a .370 bore with a .355 taper tip shaft.