Does anyone know if this would work with an AS/NW itinerary? I'm flying SEA-LAX (AS) and then LAX-MSP-BNA (NW). It's entirely a NW ticket, with my NW (Gold) # entered. I'm wondering if I could wait for the EUA to clear, then switch to AS # at the airport. This is complicated by the fact that as an MVPG I had the first leg upgraded, and don't want to have that disappear. I'm already expecing this to be a mess - after I did the "manual" intervention with AS, I logged back in to NWA to find 3(!) SEA-LAX segments shown on the outbound. It did correct itself after several days though - very strange. Anyone else have this situation or switch back and forth between NW & AS on combo itineraries, trying to maximize upgrades?