J S, It's our pleasure.

Yes, you will receive 2 MCO's from CX Asia Miles. On the return sector, you will give the MCO number 2 to BA checkin staff at India.

As for your outbound sector commencing in United States, check with the check-in staff to see if they need to collect the MCO at the US port of departure or you need to confirm the upgrade at LHR as per my previous response.

If you are not issued with a BA J class boarding pass in USA then I would not surrender the MCO to AA check-in staff - best to keep it until you get to LHR (all about peace of mind).

Have a pleasant flight.

cx_mpo