I am always a tad skeptical about color call-outs in manufacturer's instruction sheets and that is why I am excited about hearing it straight from a vet who was on the boat in question. Can you expand any on the "chocolatey black" description? How much more brown than pure black for instance? This sort of first-hand information is invaluable in trying to sort through the dearth of color information available to the submarine modeler. Stay busy, Don!