I can't but wonder how the disasterous A & B scale came to be. Surely that alone would have caused division and resentment in the first place, between crews.
As for that, to my mind, haven't, or didn't the A scalars sell out their colleuges, B scalars, along time ago, by allowing such a division. Having people on different terms and conditions, is a recipe for disaster. The CRM must be terrible at times?
Good luck to you all.