Called him a few weeks ago to ask about this book:
http://www.ebay.com/itm/WEB-MYSTERY-6-1953-MILE-HIGH-/110878371930#ht_5089wt_1399
It's a Mile High copy he lists in NM. According to GPA, the same copy (Mile High) sold as a VF+ in Oct 2011. When I asked about this he said he cracked it out himself. He then said he sold it at a convention, that the seller got the original label, and that he hadn't had a chance to take it down from eBay. This was about a month ago and I see it's still listed on eBay.
So, buy a book or accept for consignment, crack it out (to read maybe?), then list as "your opinion" of the grade, for same price it last sold for in the open market? I don't quite get it.