sdandrea1 I said it matters. Just not to the extent some would believe.
I have had some situations where people were playing grossly misfit equipment.
EX: was at the driving range and a geezer with 80mph swing was playing a stiff, 9 degree driver that he received as a Fathers Day gift( not sure if they actually liked him). Was hitting worm burners etc... no good drives. Went over to the demo rack and found a 10.5 degree degree regular driver. Instantly started hitting better drives. Was he fit? No, but it was way better than what he was using.