PSA Trimming controversy?

[sparty07]

I've been watching the Beckett controversy today on Twitter (BGS returned 3 cards checked "Service Unavailable" with an explanation of "Topps asked us not to grade these". If you haven't seen it, it's an interesting read. But someone posted a comment about a PSA Trimming controversy from a month ago. Anyone more what that's about?

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[pwaldo]

The first card they ever graded was trimmed.....also there is a very famous case of one of the card grading companies grading a very obvious Tom Brady 2000 Upper Deck SP Authentic rookie card. It is the same serial number but trimmed so much that Tom Brady's foot is missing a piece of it at the bottom. I don't remember if it went from PSA to BGS or from BGS to PSA but either way it was a very embarrassing situation.