It would be tough for Atlas to lease 3 -400's they don't yet have. All of Polar's are committed, as are all of Atlas' current ones. The four more coming next year haven't been dedicated (publicly) yet, but most think two are going to GSS, if that ever really gets going. Plenty of Atlas "Classics" to go around, though; with six currently parked in the desert, and nine or so more just picked up in the Polar buy. But Atlas Mgt has already discussed their plan to park Polar's older jets. Any total merge would probably be the kiss of death for all of Polar's Classics, because they're all P&W powered, and Atlas made a big commitment to become an all-GE airline.