RE: King Tiger turret speed
Well both info were taken off Jentz's books, Rivet's one is the thick big version, and my one is the simplified version for easy reading.
I have both books and read the relevant paragraphs, strangely the simplied version has a more precise description of the turret traverse speed.
Unless we could drag Jentz out and ask him to clarify this issue, without that we can only guess between his almost identical books.