I will definitely recommend a couple things.
#1 If you are flying out of American anytime when business travelers are likely flying, prepare to wait in line.
#2 If you think you can make it to your connecting gate within 15 minutes, think again.
#3 If you are any further away from your next gate than 10 gates away...use the train. You will not make your flight if you try to walk from one end of the airport to the other.
#4 Don't waste your time asking for an upgrade. There are so many 100K miles a year guys like me that you do not have a huge chance.


