I know some of you do not venture into the wild west AKA Comics General. But there is a discussion among long time submitters that CGC is currently irrationally tight on grading. What this is due to? Who knows.. I would guess that the change in modern graders would be one part, but I know that in general people have said those tweener books stopped going in the submitters favor. So I am not at all surprised to read the results. I have found, if anything company X has been consistent with any books of mine they have graded, and 95% of my books fell at or about where I expected.
The biggest issue isnt that the two companies grades aren't the same, but that you can submit the same book over and over and get different results each time. This is why people are crying for consistency. I would bet the books in this thread could be cracked out and graded on site and get the same grade as company X or better.