Thanks for all the info. I have decided to scratch the grinder itch first and get on the list for a Niche. My RR45 is bad for retention, changing beans or grind wastes loads of beans. I did some mods to help with static so at least thats not an issue, and converted it to small / single dose. Looks like Niche have the UK black available in Feb, so fingers crossed. Will order probably get the Elizabeth in March for my birthday.
Cheers
Jon