Card doctoring...

[egbeachley]

Originally Posted by steve B

It's almost certainly more than that. They've done 29 million things, so that percentage means only about 3000 bad things getting through.

Considering that it's done by people, that percentage would mean they're doing a pretty good job.

Steve, over .0001% of 29 million things is not 3,000, it's 30.

[steve B]

Originally Posted by egbeachley

Steve, over .0001% of 29 million things is not 3,000, it's 30.

DOH! I took it as 1/10000, and forgot the percentage.

My math is bad, but the right math makes the margin of error a lot smaller.

I'm really sure more then 30 items have made it through PSA that really shouldn't have.

[egbeachley]

I know you did. But as they say, technically correct is the best kind of correct.

I'm not sure what he meant by we would be in deep **** valuewise if it was proven that 30 cards got through undetected. I'm pretty sure that NM/Mint collectors would have over 10% altered cards in their collections.

[Peter_Spaeth]

I have no idea about percentage, but with the number of people I know to be card doctors, and the number of years they have been doing it, and some sense of how many cards they work on, it adds up.