I'm not BA - I'm charter.
However, that doesn't stop me raising a couple of points that I think you should consider:
Most crew in airlines other than BA would very much like to have BA money and T&C's: They aspire to be like that "one day". This in itself doesn't mean much, except that BA are viewed as being "better". Accurate or not, the perception is that BA earn more and work less. Waving individual payslips around in here won't change that perception, and if it goes to a strike, percption is king. In other words, in a strike, don't expect too much sympathy and support from other CC in the industry.
Th real issue, if striking (or threatening to do so) relates to public perception. If the great British public supports such action, you'll win, and if they don't, you'll lose - it's really that simple. Now ask yourselves just how much sympathy and support you expect to receive, and behave accordingly.