My brother decided to quit making his own ejuice and gave me all of his supplies and concentrates. I have two large brand new unopened large bottles of Flavour Art Seven Leaves (not the ultimate version), and a bottle of Burley. I can't ask my brother, because he never tried either one. Sadly, there is hardly any good information about these products, I take it that they are not very popular. Does anyone have any experience with either one of these products? I would very much appreciate any comments or thoughts.