As Des said, interesting comparison. However, and this is nothing against the DF plans, but ALL plans are suspect in some way because you're trying to take a 3D object, and reduce it to 2D. Also, there are no Dr.I's to truly measure against.
My point? Had you not drawn that line, no one would have noticed. Your pursuit of realism is very admirable, but in this case, I'd say you're chasing a phantom.
Warren