Quote:
Originally Posted by frankbmd
Well lets see what the numbers prove about the PSA International thread. If all the 8s were reviewed with the graders and had a 10% chance of getting bumped to a 9, you would have about 267 9s.
And if all the 9s were reviewed with the graders and had a 5% chance of getting bumped to a 10, you would have about 13 10s.
But what if all the 8s were bumped up from 7s......Hmmmm.
Every time a card crosses over to a higher grade or gets a re-review bump the mountain gets more populated at the top. Certainly many of the 8.5s were once 8s as the half grades are relatively recent at PSA. So how many of the 9s were once 8s? How many of these high end cards have been cracked and resubmitted in an effort to get a higher grade and failed?
See what I'm saying.
No I'm not saying cards can routinely sequentially be bumped from 7 to 8 to 9 to 10, but I am saying there are several reasons why these high pop numbers may be inflated, whether the cards are legit or have been touched up  .
And I'm not saying the same effect could not be seen with SGC numbers.
I'm an equal opportunity analyst, who firmly believes that....
"Figures can lie and liars can figure." |
The numbers probably are inflated a bit. Simply from the occasional crossover or crack and resubmit. I'm not sure how many people would do that on a prewar card with a high grade. I know I'd have a hard time taking the chance.
Just as a small point, the numbers for 7s are roughly 4500 PSA and just over 900 SGC. So not much population to bump.
Steve B