Hard, soft, half etc. it's all nonsense and simply delaying tactics.
We voted out of the E.E.C. so whatever and however.
We've said it before (see Blog, Britain to leave the E.E.C.? 18/8/16) the government is in on this and is deliberately delaying the process.
The longer they give it, the more and more bad news stories, financial upset, legal challenges, arguments, rethinking and doubt will all take place and set in; the snow-balling effect of all this brain washing, all with the intention of hoping people will change their minds.
They can then turn around and say they wanted to take us out, but they couldn't.
Repeal the European Communities Act (1972) and get on with it. (See Blog, Get on with it 3/7/16)