The ratio was 400g/200g Did a 5 min warming cycle on the KKTO, followed by 5-10 mins with the beans in at that low temp. Then I just let it run through until rolling second crack started. I check it once at first crack but that was it. Jonty, I suspect that the Blue Batak and the El Carmen wouldn't be as nice a mix. Both Finca's I've tried yield the strong choc-rich flavours I'm after, as does the Blue Batak... but my reasoning has been that together they might just muddy the flavour. That's why I blended it with the Yirg, which for me has always been a touch too bright as a SO, but is great for creating some interesting 'highlights' blended with an 'earthier' bean. Or at least that's my justification.... I really have no idea. 😉