Sgc vs psa for card grading

[Empty77]

Originally Posted by Wid_Conroy

.... If I sent in 25 cards and 5 came back "A", I'd stop buying cards altogether. If 1 or 2 came back "A", I would be pretty comfortable, and probably learn how to spot them.

Yes, but I think some critics in the forums would caution that this perspective doesn't validate the existence of "false negatives", to put it in the current medical parlance popularized during covid.

So for instance of the 25 hypothetical items you send in, only one comes back "A" but it doesn't mean they themselves didn't miss the other four that there actually were (if someone had a crystal ball with all the answers), which is the quantity that you estimated could swing your view of things...