I think it's time to revive the rumor that Ur Dragon gains health as a "coward's penalty" when people just go in to check status, then Godsbane out. If Capcom changed the GP so that there is no more soft GP, maybe they changed it so UR gains health when people take the easy way out :-)
I don't think it's healing, I think it's just the different versions having a wide range of health. Personally I think it has to be more than the widely believed 4 servers because I have seen at least 5 different versions in a short while.
I was (mostly) just kidding about Ur healing itself. But, I agree. Between fighting many different health levels in a very short period of time, and the health levels that I see other people reporting here, I find it very hard to believe that there are just 4 different versions at any given time.
Argh, my internet connection has been down for the past couple hours (which is a rare occurrence), and I was pissed that I might miss GP. Guess I was worried for nothing - this one is stubborn. *crosses fingers that internet connection doesn't crap out again*