By the way have I told you how much I have been enjoying the Londinium R, wow I am really loving it and it looks so nice in my kitchen. The thing that I still can't understand is how you got it so temperature stable with a heat exchanger design, I think you used some black magic and should have to answer to the church authority, lol. I have been testing it with my scace which agrees with my test buds, completely temp stable at 3min between shot intervals (haven't tested quicker then that).