The Ts&Cs NATS provided are still VERY good. Anyone who has worked in the real world before joining NATS knows this.
Phil, to be fair, you have only experienced things from a trainees perspective... as a valid ATCO you will find that the Ts&Cs are good.
That's not to say that management would not like to erode them - but that's a different matter and is a consideration for the Unions as and when it rears its ugly head.