As a sidebar, AA also does cripple 7 service ORD-DFW if you get a chance. Nothing like flying a very lightly loaded 7 with those powerful engines!
Only lightly loaded unless something earlier has cxld or there's a boatload of non-revs trying to get out! I've ridden that ride wide open and I've been stuck in the middle seat in the waaaaay back with every seat full. (When I was teaching down there I'd commute back on that flight.)
I was talking pax "load factor", not load as in a/c weight.