Where people are seeing that 25m is a legal connection? What I see on EF says the MCT D-D is 30m. It's true that it's less than a 5m walk between the furthest gates used by AA but you've only got 10m to get off the plane before the connecting gate is closed. It might work if you're in FC but if you're in coach you're going to spend longer than 25m in Austin. We have a great AC though