Originally Posted by
Calchas
Yep, pick as many AA codeshares as you can (for mileage purposes). The tool doesn't show every codeshare, so you can try to investigate this yourself by looking at dummy bookings from an AA hub to points along your route, to try to see what codeshares exist.
IME the tool shows very few codeshares. Also, don't rely on dummy bookings. Use the electronic timetable. Remember that most distant codeshares require either TPAC or TATL connection on AA metal or AA codeshare.