I got upgraded Sunday afternoon as a GM on a T fare for the 5pm JFK-LAX flight on Monday. I was very surprised. The cabin was booked 13/16 when I was upgraded. It was part of a reroute because of a delayed flight. Ended up flying ATL-JFK-LAX upgraded all the way (ATL-JFK was subbed from 764 flatbeds to international 763 with recliners).