This is no help with LF matters, but another post about KEH's condition ratings. Just a few minutes ago, FedEx delivered an auto-exposure prism I'd ordered for my medium-format Mamiya 645 Pro, listed on KEH in "UG" condition. I was expecting something truly awful-looking, but I was mighty surprised. There are some light surface scratches on the plastic housing, and just a bit of the white-painted figures on the black control dials is rubbed off. Of course the item is in perfect working order. If I'd gone to the next highest condition grade, I would have had to spend $110 more. Woohoo!