Excellent points. The west pilots instantly move down in seniority positions once the NIC-inclusive JCBA is ratified and then move up at the exact same pace from that point in time on as do their east counterparts on the same list.
You are kidding right? Positions do not equate relative position. You have seen the cleaned up Nic list that a west came up with that shows your relative position on the east/west list vs. the Nic, right? It doesn't happen that way at all. EF would jump from 87.59% on the west list to 75.65 on the Nic. Along the way jumping over guys that hold 737 captain, A330 F/O and 76I F/O, all of which are higher paying positions than what he holds even with LOA 93. Yeah, he drops raw numbers, all but the top east pilots do, but what he can buy with that number changes dramatically.