Copper cap updates - I got my wife to allow me to run the speakers in with pink noise at night at low volumes, so things are moving a little bit faster now. I wish these stupid things were cheaper, too. At least they are less expensive than the Duelands.
As of right now, the Jupiters are still in that "good but not great" area that happens for a while during burn in. I'm confident they'll continue to "open up" as I get more time on them, because they did the same thing when I put smaller Jupiter caps into my tube amp.