Dan Dare,
You are already being paid for those "3 extra days". If you happen to be at a unit that hasn't needed to use them,well lucky you. All this does is bring all units into line and allow NATS to utilise what they are already paying for.
chevvron, Not much can be done about your council tax I'm afraid. How will you lose out on ASAP? I understand you will be paid according to the roster you actually work. So if you have chosen not to do a full range of shifts why should you receive the same as a colleague who makes themself available for all shifts for that unit?
Bex. How would a shorter deal guarantee a better deal?? Not that many strings from what I was presented with. what would you be asking for if this were to be rejected?