Hello all, and thank you for your responses. I've relocated across the USA, away from these machine for now, so I'm going off my memory of their operation to answer some of your questions, rather than having immediate access to them. From Richard: 1) How old is the coffee? Where and when was it purchased? What

Could just be that they need even more seasoning. Some have reported a noticeable improvement around the 8-10kg mark while I remember someone with a lot of experience saying he stopped noticing small changes and everything got much more consistent after 20kg. I had a set of CV2 that I purchased used with over a year of usage. I