As someone who has done work with RVG, he had his own version of the "sound". I had some conversations with him about the differences between BN, Savoy, Prestige and Impulse. Rudy said each customer adjusted his basic sound to their taste. He was a very bright guy with his own ideas. He found his "soul mate" with Al Lion. Sorting out the the best late stage RVG masterings is confusing, but many of them are wonderful.