I’ve had a chance to play around with the Miuras but somehow the Epon SUS are a head that has never made it’s way to me. Having owned most of the cult Epons I’m not sure why these didn’t do anything for me. I think maybe they just came out when I was deep into blades or I got tired of Epon’s insistence of moderate amounts of offset. Anyways, I had no idea these were that soft, maybe I’ll have to reconsider.
I have to agree with you about heavier steel shafts bringing out the best in forged heads. My iD-BLs with Modus120 X are the best feeling club I have. And there’s honestly not even a close second. The weight is the only explanation I have for an X flex shaft feeling better than any of the S flexes I typically play.