was thinking about the recoil 80 f3 iron shafts, and hard stepping the install by one – meaning 7i shaft into 6i and butt trimming for length. what flex can i expect? i’m hoping to get to an “f3.5” – is that possible?
It’s always a guess as to exactly how it will turn out. Basically, 2 grams of head weight is worth 1 cycle of flex. Assuming there is 7 grams difference in the head weights between the 6 and 7 irons (the normal progression), the head weight would account for 3.5 cycles, which is approximately 1/3 of a flex. So it might be more like f3.35, not quite f3.5. That is just a general guide and every shaft is a little different.