When the UK-guys had the choice of which contract, they choose the one that suited them most (or hurted them least), but as a relatively small group they're now totally stuck. Unhappy with the contract they choose and unable to improve it. Only way to go is the mainline contract and negotiate some additional items to enable a social family life in the UK. This is gonna cost both parties something since kostenneutraal is still a hot issue. I see many solutions, but by fighting/alienating everybody they' re only gonna end up with the legal minimum of what they' re entitled to.
Just my 2 Eurocents.