Thanks for the info, it's an interesting spread!
I've recently moved to Devon, and completely by coincidence I now live 20 minutes' train ride from the nearest GIC, which is The Laurels, in Exeter. I've got my psychiatric assessment this afternoon (eek), so we shall see what we shall see...
I'm doing some mental juggling over all this - I started seeing a psychiatrist privately 3 months ago, because moving to Devon was taking longer than expected, and I wanted some expert input into what I was going through without having to wait until I had a new GP etc. before getting into the local system. If I go and see that psychiatrist again in July, he said that he may be happy to recommend me for HRT by then on a "shared care" basis with my GP, who is very supportive and said she'd be happy to comply with that. If this happens, then I'm content to start HRT and wait for my GIC appointment to appear - and then deal with however the clinic responds to me already being on HRT when I turn up on their doorstep

.
The mental juggling is over the cost of doing this part privately (the psychiatrist plus the train fare to London is quite hefty) weighed up against the emotional cost of having to wait perhaps at least another year before I've got through the GIC's doors and they get around to referring me for HRT. I'm an "unusual case", because I don't present as very feminine and am not particularly inclined to (if I were a film, I'd be called Tomboy, Interrupted

) - for me, it's all about the anatomy - so the clinic may want to drag its heels over diagnosing me, but the psychiatrist I've been seeing is a lot more open-minded about there being many different kinds of woman to be - he just wanted to see me more settled in my new situation first, and to have more time to get to know me.