Glad it's helpful. If anyone can dig up high res photos of dead on accurately graded coins below MS63 where the grade isn't at all controversial, please let me know. I'll add them.
Or perhaps us CCF's members could work together to get a better photo grading guide going by pulling high res pics from the net (or our own collections) and come up with a common set of grades going down the scale that after being peer reviewed by many CCF'ers we all would be confident in using ourselves We'd need a good amount of planning and cooperation though.
I think the problem with
SBA's is that they're simply not old enough to merit people pulling them from circulation and having them appraised. 50+ years from now XF and AU
SBA's might be something the
TPG's would be getting more of and help set a standard, but right now it appears only proof's and MS's are going to the
TPG's. So who knows, possibly the onus is on us to set the definition of grades under MS63.
I should also note that from PCGS's population report, there are no
SBA in MS coming in st MS69 or MS70.