Is he marketing this in his web site?..let me go check....as Arnie says..."I'LL be Bauck"
That is a shame, Butcher was one of the photographers I admired. What is even worse is that some of his informatin is wrong. The "black" pigment is actually less stable than the grays, as the pigments do not give enough density and dye has to be added to the pigment to make it "really" black. at least that was the info I have gathered from piezography and MIS inks, I doubt Epson has come up with a better pigment, since they are actually behind Cone in the research of these inks...I think I will send them an e mail.