I have a set of the dpc irons. What can I say that hasn’t already been posted? Amazing feel, gorgeous and quite forgiving. It’s going to be hard to really make anything substantially better
Not to bring back a dead topic but I built a set of J38 dpc's for my dad. He loves them! He was searching for something to replace is beloved Mizuno MX-23's and this was about as close as I could get for him. Picked up the heads brand new and built them for him one weekend.
Also, one evening my now wife and I were at the range and she left her clubs at home. I was working for Bridgestone at the time and she borrowed one of the demo clubs to hit some golf balls with. She was absolutely crushing the J40 non dpc. Her normal set was some boxed Maxfli ladies set but she was hitting these about 10000x better! I called in a favor and she ended up having Santa bring her a set that Christmas decked out with pink paintfill too! She doesn't play much but when she does, her irons are her favorite and her strikes with them make it look like she plays twice a week!