Taking care not to open myself up to libel claims, I must stress that this is only my personal opinion but I found that up to about 10 years ago Spink were always quite conservative in their grading, rarely describing anything as "uncirculated" and more or less anything I bought that they described as EF I would have accepted as Unc. Now, I didn't examine the recent Andy Scott collection coins in person and I know that the catalogue and website pictures were awful, but there were a lot of coins described as "uncirculated" that in the past might possibly have been graded a little lower in my opinion. Steve Hill moved from Spink to Baldwins a few years ago and I have faith in his grading of copper coins. Mark Rasmussen (dealer) has always been very accurate in my experience. There are definitely some well-known dealers who grade a little ambitiously but I'm not going to name anyone here.