Originally Posted by JohnAx
Hasn't AA been using P as their Premium designator on their 3-class transcons that actually have service resembling first class?
Yes.
Using it as a discount-fare designator (on just certain flights?) sounds like a recipe for chaos.
Yes, potentially.
BTW, there's another thread on the topic with a bit more granularity, but still lots of unanswered questions:
-F- inventory is now universal for Premium class
http://www.flyertalk.com/forum/showthread.php?t=466912