I am currently playing a set of Pro 221 irons (3-p). Play well with them. Like them well enough. I’m just not sold on the feel of the copper underlay. Almost feels too dense to me. I really love the feel of the older models. My last “favorites” were the MP4 blades, MP32s, and although not a lot of people really liked them, I really liked the MP63s as far as CBs.