Originally Posted by
williwaw
Odd GGU experience: I have a friend on a red-eye from SFO-JKF that is four days. I offered to see if there was U space for a GGU and to my surprise there were 5 this close in. So I applied it, and then went to check the route in ExpertFlyer and it went down to U0. Seat map shows same open seats, so I don't think I kicked the Professor in the pants to upgrade others. (It was T-80 hours when I applied it.) Still a fair bit of U space on the next flight too for Tuesday night.
This is normal...I mentioned it in a thread awhile back and it's pretty annoying because if you try to use a GGU to upgrade two passengers on separate reservations when U=2 or higher, all the U space will disappear as soon as the first passenger gets upgraded....not sure if its a technical glitch or intentional, but its been working like this for a long time now.