One promise - fairness in route transfers.
Even if one would trust BA to act so unfairly in this process as to reduce their heritage CC's allowances to zero, they still have the new system that pays them the equivalent of current rates, so they are no worse off*
As for the payrise, I'm sure BA would happily drop that part of the offer if Union members feel its only a gimmick.
*As an average group, they would be no worse off. However we are told on the other thread that BASSA members manipulate routes so that "favoured" senior BASSA members get the lions share of high earning routes. Thus these senior BASSA members would lose some money, while the less senior CC would gain. The cynics on here (and I admit to being one of them) would say the prolonging of this dispute is a clear example of the BASSA reps/senior members attempting to continue the feathering of their own nests at the expense of their junior members.