At least I hope it is an interesting scenerio. Flying IAD-JFK on AA connecting to the CX flight to Hong Kong. The PNR for the IAD-JFK flight is 'linked' to my RTW itinerary which resumes in JFK. All OW airlines on an int'l itinerary as a OW saphire elite member allows me to use the OW lounges at IAD. I prefer to try the BA terraces lounge instead of the AA Admirals club. Will the BA staff tell me to use the AA lounge since I am departing on AA? What makes this interesting is the fact that my RTW paper ticket shows a different date from the actual reservation (AA says no re-issue is necessary now). Thanks...