I believe it's due to the fact of wanting to get on property before a us air merger. Perhaps fear of stapling. What I don't think would happen in this case, provided there is an aa pilot junior to them on property, currently flying. I believe that was not the case in the nicilau(sp.) arbitration decision. The 12 year fos stapled in that agreement were on furlough unfortunately, with no pilots junior to them on us air property. Imho