Today at my local Golfsmith I picked up a Titleist 716 AP1 5 iron and a cally XR-1 5 iron - both graphite shafts - to hit some balls while I was having my putter re-gripped. I was absolutely killing the Titleist, the ball exploding off the club and traveling dead straight. My experience with the cally, whose head is similar to the Titleist, was not even close. I asked one of the associates why the big difference in results. He looked at the clubs and said the Titleist has an A flex senior shaft; "it must be really kicking for you". Since I forgot my reading glasses, I never tried to read the flex on the clubs (the cally was a regular flex).
This shocked me. Granted I'm 64, but I typically hit my 7 iron 150 yards and my drives about 235, so I never dreampt a senior flex would be right for me. Was this an anamoly? Could it make any sense at all?