The
TPG's are in the business to make money. They process coins and paper money very quickly; 3 graders typically see each numismatic item and then the item is confirmed with a senior grader.
I think they do the best that they can.
TPG graders see thousands of notes, coins and I believe are honestly doing a great job at grading. Yes, we collectors grade the item, we scrutinize each and perhaps are more critical than the
TPG's as we have the time to nitpick.
The buyer of our graded numismatic items has the final say in whether they want to spend the money. If it doesn't look right regardless of the
TPG than they don't buy at that price, but price always seems to determine if there is a sale.
We have 3 choices for getting paper money graded. PMG, Legacy and the new PCGS.
I have sent in 20+ Canadian notes to BCS. I think they are tough graders and if you send them in during their July/August sale, they are so cheap! Especially if your spending USA dollars with the exchange.
I admit, I have sent notes to BCS and then removed notes and sent to PMG as they are more lenient on grading and I benefited from this.
I talked to many a dealer that have cracked open coins and resubmitted them until they get the grade that they want.
We do these things to increase the values of our collection.
So buy the coin/note not the holder is what any good dealer will tell you.