Hey all, hopefully this is the right place to post, since it refers in my case to my *A Gold status, but may be a more general question about switching ff#s. If you have a roundtrip flight and switch your ff# from A3 to UA for miles accrual after checkin, lounge, baggage, etc, right before your departing flight, are you out of luck for your return flight? Or can you specify that the ff# only be switched for your outbound flight? Is the only way to fix this by booking 2 one-ways rather than rt? Or am I missing something else? Thanks for the help!