Thank you Voodoo Magic; I remember reading your excellent post on that; it's partly why I was confused about Stout's contribution as it doesn't appear. Although Winston clearly had a thing about credit, it looks like Stout is forgetting/glossing over the contributions of others; I can't see how we jump from his concepts to Winston's mandibles. And it still looks to me that SWS at least did a full redesign on the head, not just the mandibles.