BG,
I'd strongly, strongly urge you to look into what the new EASA FTLs would mean for you if implemented. There's simply no commercial way BA would be able to leave our current negotiated industrial agreements in place and survive in a market where other airlines can roster to the new "scheme" that the EASA proposals will bring in. Having a strong union or a set of agreements that can only be changed by negotiation will be an irrelevance. The airline will have to adopt the new scheme or wither on the vine in the face of such marked efficiency differences that other airlines will be able to reflect in their ticket prices. I think you can forget MBTs as you know them and a reasonable slip time down route. I'm away from my main computer at the mo but when I get back I'll post a list of the changes these would represent and why BA would have no choice to implement them from a commercial point of view.
Cheers
MrB