Posted By:
warshawlawThey have been flawed from the first days of their use because of rampant resubmittals of tweeners. I bought a really nice PSA 7 1954 Aaron several years ago. It was a PSA 7 after three submittals and returns from PSA because the dealer thought it had a chance at an 8. The pop of PSA 7 Aarons is at least 2 over reality. This is a common practice and pattern and it has only worsened since cross-overs started. I've crossed cards from PSA to SGC for the 1/2 grade bump and have even seen them crossed back!
There is no way to know what % of cards are actually slabbed but it is a virtual certainty that the pop reports dramatically overstate the number of cards that have been slabbed.