From the posts in this thread it will seem that upgrades to First using AA miles will be in CX A class whereas upgrades/redemption ticketes using Asiamiles will be Z class. I had always thought that A class for CX were really discounted such as RoundTheWorld fares and Z were upgrade/redemption tickets. The important difference I thought was that there are more seats allotted to
A than to Z. Eg, you often see A4 on Gallileo (though God knows what the figure is for Z since it is not shown).

So, it would seem that getting upgrades on CX using AA miles would be easier in that there would be the A for use?

Now, what about redemption for CX tickets using AA miles? Does one also book in A class for First class seat redemption?

Cheers,