Well, it seems that we have strayed into something other than -400's and crews coming back.
I would suggest starting a thread on the merger. Oh wait, I think there has already been one or two.
As far as "time line fence", that was addressed by one of the previous arbitrations and this recent try during merger discussions is only another attempt to get what Polar didn't get in the previous seniority list arbitration.
Unless there is something specific to -400 and crews coming back I would suggest closing this one down.