"For our edification can you link to or explain what D, V & V points were, the key info?"
what they thought does not matter
what they present are dozens and dozens of various glyphs written/inscribed by different hands in different tombs all over Saqqara and Abusir. And some of them are more dissimilar than alike!
IOW's primary sources
Not the opinion/conclusion/assumptions that the Newagers constantly piss and moan about.