I have bought dozens of Diamine ink bottles - I find that less than 3 pounds per 30ml bottle is a steal for such a quality ink. Bought a number of 150th Anniversary inks, too. One thing I found about them is, they seem to come too saturated/concentrated, almost black. They look different from the swabs, either the (horrible) pictures of the Diamine site or the (great) pictures of Goulet. I have also bought samples and bottles from Goulet as well, but these ones seemed to have the right dillution - the color was more or less the expected. Save for the brighter colors, I add around 10% water in every Diamine bottle, and then the color gets "there". Has anyone experienced something like that?