>>>What are all these NINE CS grades. How do I tell one from another?>>>

YOU DON'T !!!!!... Only the slabbing company can. You must remember it's THEIR OPINION. YOU have no say in the matter once you've asked for their opinion. However, you can keep breaking the slabs open and repaying good dollar after bad dollar in an attempt to get the GRADE you wanted.

After reading "Grading: A Matter of Opinion", I have got to say, I'll trust my own eyes and instincts and "ANY CC & GTCC" MEMBER/DEALER" instead of letting any grading (slabbing) company, that knows nothing about my hobby or collecting interests, tell me which one of 28 conditions the item is in. NO WAY WILL I PAY THEM FOR THEIR OPINION, BY PURCHASING A SLABBED ITEM, WHEN THAT OPINION IS SUBJECT TO CHANGE FROM DAY TO DAY.