Getting my clubs fitted

Hi

im currently playing 712 ap1 irons a 910h hybrid with a stiff shaft also a 910 d2 driver with a stiff fubuki shaft..

none of this equipment was custom fitted to me so was wondering if it would be worth booking a fitting at the celtic manor centre to ensure I'm playing with the right clubs, shafts etc also would the be able to adjust the current set up I have rather than purchasing new clubs any advise would be very much appreciated