Originally Posted by JDiver

AA allows booking awards 331 days out, full stop. It is what it is.

Redemption for MileSAAver awards depends entirely on Revenue Management and we will never be privy to their algorithms and other proprietary decision making. I'd read the MileSAAver thread here for a lot of member input; I'd also expect MileSAAver F awards to NRT to become much rarer when they begin fying with a 777-323ER / 77W and the 777-223ER becomes a two-class (+MCE) aircraft.