Portside,
Why dont you approach BALPA and offer to set up the Flexi-wings Company council? Then BALPA can represent you with your employer. Then maybe when your employer rents you out like a cheap whore to my employer you can stop dragging down the industries T's and C's and also stop wanting other people to tidy up the bed that you have made for yourself by accepting such a stupid scheme in the first place.
If people didn't accept this crap and stopped being "so grateful" to be sitting in an airbus then we wouldn't be in this mess.
Get some self respect and a Spine before you start asking others to clean up your own mess!