Can tapered Nippon shafts be hard or soft stepped .
If you put the 38″ shaft (#8 iron) in the #7 iron, for instance, the shafts will play slightly stiffer. If you do the reverse and put the #8 iron shaft (38″) in the #9 iron, they will play slightly softer. Basically if you’re putting a lighter head than what the shaft is designated for (#7 is lighter than an #8), it plays stiffer and if you put a heavier head than what the shaft is designated for (#9 is heavier than the #8), it will play slightly softer. I would not expect a great move in flex, but probably around 1/3 of a flex change.