Given the fact that ExpertFlyer allows award seat availability alerts for AA, does that mean one can use it for US Airways Award availability too indirectly? As in, is the AA award search and alert on EF only for AA metal award seats or all airline seats that show up when one searches award availability on AA.com?

My primary purpose is to find a service that sends me an alert when the low points awards for PWM-DCA and back on US Airways open up for certain dates during the weekends as I fly this sector every couple of weeks and like to book them through BA Avios now that it's possible.

Which might be the best tool for this purpose, if not Expertflyer. I know KVS Tool can search US award availability, but what I require are alerts so I don't have to constantly keep checking.