A good handful of people must have cleared SWU's in the past 10-12 hours... the cabin is now no longer undersold by any means for tomorrow morning's flight. I don't think there is anything wrong with AA's RM strategy, as it still encourages people (well, corporate accounts) to buy business class fares and not rely on upgrade instruments as any sort of guarantee. At the end of the day, it is still win-win for both AA and for passengers -- if the loads are light and you have an upgrade instrument, you'll get upgraded, even if it's at the airport or within hours of departure. Contrast with United where you have to buy a specific fare class to even be able to use your GPU's, even if there are available seats up front.