A Lurker,
You stated:
.... clearly there is going to be some form of IA
and
There will be a strike - that is without question
You seem recklessly confident of that. I hold the opposing view - I don't think any potential industrial action will actually get started. Why? Because of the very shaky ground that BASSA have stood on for so long - validity of the ballot, the legal case pending in February, to name but 2 reasons. BA are primed to pull the rug out from under BASSA, and they may be able to force Unite to do it for them. Unite can't afford to pay for BASSA's serious shortcomings, and certainly not whilst steel workers are about to lose 1700 jobs.
Nah, there won't be a strike!