Apparently there is a Quick-fix bug.
This gives a permanent quick-fix uber effect on yourself even if you change class or loadout
http://www.youtube.com/watch?v=XdoyUE7BZ0QYou get the charge, wait for the first round to end, use the charge just before the next one begins so it starts mid uber. It sticks.
We need to watch for this on the server. There was one person using it tonight [FL]Octavia. He stopped using it when I said if he did again, he'd be banned.