Currently have the kuro kage 2nd gen hybrid shaft in a maltby KE4 tour 22° I'm testing and have the wood wood shaft in a cobra F7 I'm messing with against my Callaway rogue with stock recoil shaft. So far I'm pleased on a simulator but snow still on the ground here so no actual play. I did order 1 of the iron shafts to try in the gap wedge on building so initial impressions were good enough to have my buy another, price helped that a lot as well! Hopefully I will have some more feedback in the next few weeks as our season gets started.