I was fitted with this shaft (Reg Flex) when my 5 iron speed was 75 MPH.
That was 2 years ago when I just started playing again. With 6 days a week of stretching and exercising tons of range practice and golf lessons, now my 5 iron speed is 90MPH.
My 7 through wedge shots are all super high balloons.I have to really tone down my swing with my irons as compared with my Hybrid or Woods which have stiff shafts in them.
I am going to re-shaft with the True Temper Dynamic Gold SL Stiff (106Grams) which has a low launch profile.
I have a 1 iron in this shaft and I hit it great with no ballooning so I may need a mixed set of shafts(ie. High Launch 3,4,5 and low launch 6-Wedge)
Pros: Quality, Easy to Use, Good Value, Durability