I'm definitely in the camp that believes close reliance upon these grading company pop reports can be dangerous and misleading.
That said, Mintacular has an inquiring mind, and there is some fun to be had in running some searches of these pop reports.
I agree that there is little point in running commons. Why would you? Search stars from the same "series" and you are much more likely to get meaningful data (the owner has a bigger incentive to send it in for grading).
Here's something from SGC:
They have graded:
245 T206 Tris Speaker cards
349 '53 Topps Mantle cards (low #)
155 '53 Topps Willie Mays cards (hi #)
This obviously tells us nothing conclusively, but this type of data may be interesting to Mintacular.
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