When you look at the relative seniority disparity between plug WBA and most NBA or WBB, it’s hard to justify the leap unless your life is incomplete without being a WBA. It’s a monumental QOL difference and not much different $ if you want to work the system.
I can’t believe it doesn’t go more junior than it does. I think pilot groups are still kinda stuck in the pension era bidding mentality with the top pay and “golden ring” being WBA.