I saw that the graphite (made by UST) would pair up pretty nicely with what I have weight-wise. I might be apt to try that shaft if I went with that head.
My iron shafts and wedge shafts in my RTX 2.0 match now, just heavier in the wedges.
I have Hogan Equalizer wedges(50 54 & 60) above my Hogan PTX Pro irons and they were built with matched KBS shafts and GP grips and I couldn't be more satisfied
I put in Steelfiber 110s. My next irons will be steelfiber I95S so I was preemptive with them. They feel great and I am pumped for my iron set with the Steel fibers in them. I have C-Taper lites in my Irons at the moment and they feel about the same.
I've got the same shafts on both my irons and wedges. I play Cobra FT irons and have Bettinardi wedges, 50*, 56*, and 60*. I'm using UST Mamyai Recoil ES 780 Smac Wrap F4 (stiff).