I have an upcoming itin (OMA-DFW-LHR-MAN) and wanted to upgrade on the OMA-DFW leg for a couple of reasons. My wife and I have some 500 mile upgrades and we never get to use them as we often connect in ORD and then International and OMA-ORD is only offered on AA Eagle. I still cannot see the point though in using two stickers for a 583 mile flight OMA-DFW. If I submit the request online I know they will take two stickers per without question, but if I wait until I get to the airport and check-in can an agent just take one sticker, do you think they would just op-up? Or should I just book the two stickers each and be done with it?