Notes from a former card Grader/Authenticator

[Snowman]

Originally Posted by bn2cardz

Oh there is still evidence left behind. It would be disingenuous to take what I stated and deduce that there is no evidence. However, it is always good to get a second opinion.

Are you of the opinion that there is always evidence left behind from trimmed cards then? Or at least that there is usually evidence left behind, and that when a trimmed card slips through, it could have or should have been caught, and that the only reason these surface with some degree of regularity is because of the sheer volume of cards that these companies are handling?

[steve B]

Originally Posted by Snowman

Are you of the opinion that there is always evidence left behind from trimmed cards then? Or at least that there is usually evidence left behind, and that when a trimmed card slips through, it could have or should have been caught, and that the only reason these surface with some degree of regularity is because of the sheer volume of cards that these companies are handling?

That would be my opinion.
Is it possible to make it undetectable? Probably. Do the people trimming have the knowledge and ability to do that? Less likely.