Originally Posted by
hermanfish
Is my best bet just to call AS every week to see if the seats have opened up?
There's no secret. That's what you have to do. Some people can post here some of their experiences for when U seats will open up, but that's only a guideline.
You can shortcut much of the calling by checking (even daily, if you want) your flight at this site:
http://www.flyaow.com/classamex.htm
When you see seats appear in U, call to snag them before someone else does.