Have you ever heard of a Verdier still? I think I have that spelled right. I went to an Armagnac seminar last year and going back through my notes recently, I ran across this note I had jotted down, "single continuous still in Armagnac is different Verdier still 1819. Coffey still erected in 1820's in Ireland." I tried to do a search on Verdier to no avail. Not sure if I spelled it right. I think I remember seminar speaker Steve Olsen saying something about even the single continuous still used in Armagnac being different, maybe something about that the vapors passing across the wine and capturing congeners differently or something.