I don't know why Dick got rid of his Berg Larsen piece. This white thing he's been using for the past few years makes his tone sound kind of brittle and off-center. At least to my ears. He's still the master, though.
Carl Hammett he said that the berg became TOO open from using it so much. He also noted that the brilhart requires different reeds and that he is still getting used to it. cheers.