I think the main thing is, as we're seeing from Jaggys post and elsewhere is the fact that no one agrees on a grade of a coin especially when you're talking sheldon grading or whatever scale that LCGS use, points differences is IMO minimal.
I'll always ask the same question, how do you differentiate an MS63 from a 64 or an LCGS 78 and 80, IMO it's just BS, when you're talking AU58 to MS63 onwards then there should be some differences, but 1 point is just talking through their rear blowhole