I have a couple of off-white/white that says otherwise but it doesn't bother me.
I'm curious about the DD7. I am confident their grading is in the ballpark, whether or not it receives the same grade by CGC is another thing. I am more interested in the book personally although I doubt I'll even end up bidding on it in the end.
Alas, no DD books to bid on for a while.
To the newbie, regarding the pence copies, I am not really sure what it does to the value. I think a google search and some reading will help, or a general post to 'Comics General'. Don't let the flip responses bother you, they are expected. I would guess that some people don't like them (like I do), much like they don't like date stamps or distributor ink (also a peeve of mine, though I own copies with both).