Ah well the good news for me is Hampshire support the G6 now, I'm treated in Dorset but live in Hampshire. I too have been self funding (over 8 yrs now) but working on he powers that be.
The to meet the current criteria you need to show you have no low BG awareness and that it causes you to need intervention from another person to treat your low BG, i.e. it goes too low for you to treat on your own. Sadly those of us who have the Dexcom would hardly ever get to this point and you get warned by the Dexcom in advance. So self funding to improve our management is self defeating for NHS funding.
But can the NHS make that argument when you are using something they didn't fund?
When I came to make my case for a pump I was worried about this. I originally funded the pump because of some particularly unpleasant night time hypos which were the more frightening because I live alone. I admitted to the DSN that such hypos weren't now a problem because I had the Dexcom. She took the view that it wasn't relevant.
It was partly a case of being in the right place at the right time. They wanted someone with a G6 who would use the more advanced aspects of the pump & give them feedback. Which I was very happy to do.
I know I'm lucky that I now have a wonderful pro active diabetes team supporting me. It hasn't always been the case.