I just received a set of AP1s after getting fit by the tour van. Based on the recommendation of my fitter, my shafts were cut 1/2" short across the board. I just played my first round with them and I was cleaning my clubs at home after the round. I noticed that all of the clubs (4-PW) have the serial number etched into them but for some reason my GW (which came w/ the set) did not have that serial number in it. Does that mean it was not shortened like the rest of the set?