https://www.blowoutforums.com/showthread.php?p=14438560
Pretty interesting connecting the dots on this. Appears this seller was the purchaser of the raw cards
and seller of the altered graded cards. See Post #8. Turning 8s and 8.5s into 10s. Crazy but real. The technology is there. Be careful.
So glad I don't chase the high end graded stuff.