If I were the authorities and had any inkling of wrongdoing, or was investigating the hobby, I would probably have a conversation with the grader that bumped the card, the submitter and the graders manager. It wouldn't hurt to to see what they would say...
And if it's true that the card went from a 9 to a 10 after that many bumps, then I really don't know what to say about the people playing the "10" game. I wouldn't want to be the last one holding that potato though.
