Time will tell on that one.
Bargaining 101, make your last offer at the final second.
Chess, always think at least two steps ahead. Let pilots think the threat of CC will influence Mgts decisions.
Passing up an unconditional, back-dated pay-rise still allowing you to implement CC for any thing else you care to dispute for eg credit factors/overtime or anything that is a payrise in another guise. Well we'll see who is playing the long game soon enough!