Based on how this conversation is going so far it puts us back on the question. What’s undetectable by TPG’s slide by as unaltered. That’s the reality we card collectors have to live with. Until TPG’s figure out a solution.
Watch the video and they speak on this subject of “tolerances” when it comes to things like cleaning or pressing.
Somehow CGC appears to have it figured out and is obviously more stringent on books than PSA is on cards.
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