@Ham
Thankyou. Yes, milk is a different beast. It tempers overly acidic fruity coffees into something I can bear, but it swamps the subtleties of exquisite beans. Its a quandary because I like sweet Italian bar espresso now and again, but it is bland with milk. Maybe I need two grinders and two machines?
I got into Cuban serrano couple of decades ago after trying it in Cuba. It was roasted pretty dark and was a bit like a really good Indonesian coffee. Couldn't get it here at the time, so had to import ground pre-roasted stuff. Then I found a source of green and roasted it myself. Sold my roaster about 6 or 7 years ago and can't be arsed with that now.
I'm still lamenting the disappearance some years ago of Harrar coffee. Had a really good earthy fruitiness that held up with a medium dark roast level. When blended with a more neutral central American bean it made an amazing flat white. Just can't find it now, or if you can it's crazy expensive and not good quality.
Will have a look at the CC Mystery