Today's update

Johnny is home and is doing great. He isn't showing any signs of laminitus, he isn't on any medications apart from the Marquis (no anti-inflammatories), and he is ony showing the most mild of signs of any ataxia (and they're so subtle that they are probably only visable to me, who has lounged him thousands of times and knows exactly how he moves. He's just not quite as fluid).
He is in a better mood, although he's still a little crabby because he's not being ridden, which he really needs to stay in a good mood. But he's running and bucking in the pasture and is happy to be home and see everyone. He's king of the herd, so all his buddies missed him. And are following him everywhere and keeping a close eye on him.
Outlook is very hopeful at this point!