Can someone explain CSG Sub-Grade Math? Is it similar to BGS?

6 posts in this topic

19 hours ago, Pop Archival said:

I received an overall grade of 8.5 NM/Mint+ with 9.5 Centering, 8.5 Corners, 9.5 Edges, and 8.5 Surface. 

Just curious because my math comes out to 9.0, and that's the grade PSA gave it before I crossed it over to CSG. 


From everything I've seen, if you're going to cross something over, it should be CSG or SGC to PSA. PSA is well known for being the easiest and most lax of the major grading companies. 

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