Without in-depth knoweldge concerning the rules of such a FF program this is impossible for me to answer. However, I would assume that such a program would have to contain so many compromises, in order to satisfy a large and growing carrier membership, that it would be less useful than today's separate prgrams. I would recommend:

- making the rules (regarding accumulating miles: status, program and bonus; obtaining upgrades using miles; accesing lounges, etc.) easier to understand and more consistent.

- offering additional benefits to tier-ed members of more than one *A FFP. (like *A Upgrades)