Well, if this is true, it explains why the AA agent cannot see the second F award seat on the HKG-SFO flight that I want to change for both me and my wife. BA and KVS tool showed 2 x F award on the flight we wanted to change to, but the EXP agent (now I have talked to 5 of them) said only 1 seat available on that flight! I guess it's sort of blocking on AA's part (how ironic would it be of more than 50% of the CX F cabin is filled with those redeeming AA miles with subsequent award space opening up ).

Anyway, if you are traveling with your girl friend, wife, significant other, it's most wise of you to choose the same cabin of service. NEVER fly on separate cabins (especially when you are flying in higher class of service) - that's the short cut to your girl friend breaking up with you (you know I am just joking, right?). At least I wouldn't do it myself. If 1 business and 2 coach seats are available and I am flying with my wife, I'd choose 2 coach seats in a heart beat. Of course, before that, I'd look very hard to get both of us in higher class of service.