I like the idea of a standard grading system, but...

...I with the club standard, I think there is wayyyyyy to big of a gap from "New" to "Average".

Unless I know for sure that a chip has never hit a table, I cannot list it as "New". I feel that the SU category goes from slightly better than an average chip all the way to next to new.

That "SU" category would comprise about 70-80% of my collection (and traders). I prefer a bit more granularity.

Just my opinion