It may be worth pointing out that DFW and MIA were the starting point for the first BA/AA metal swap announced a few months ago. As part of AA adding a fourth daily flight over the winter months (up from the current 3) BA is downgrading their 744 to a 772 during the same time period. I see that BA 744 is loaded again starting in March, but that's still a ways off and it wouldn't surprise me to see the swap continued into next summer depending on the results of this winter's flights and the outlook of how things are booking as next summer gets closer. Just a thought.