I've never really seen a "mint" pinball. I'd say a "mint" pinball is a machine straight out of the box. So I associate "mint" with "New In Box".
"Mint" is a term thrown around too loosely. Although I've seen some EMs that have had 100's of hours spent on them - and they were close to "mint"
I use a tern "Nearly In Box" for top shelf restorations - whether it be hobbyist or professional. The only person I can think of that can claim a routed pin is restored to "mint" is Christopher Hutchins.
