The club does have an official grading system for casino "TOKENS" and that is what silver strikes are.

http://www.ccgtcc.com/education/conditions.pdf

While this is the grading system for casino tokens I believe it could be used for silver strikes in general.

I will agree that there should NOT be grading system for silver strikes as there are in coins yet a couple of stupid slabbing guys out there have tried it. Most recently and for a while it was "centsles" on e-bay. And he was claiming that they were "PROOF" tokens. I remember the earlier years when we had one of the minting companies give us a talk and they stated that silver strikes are not struck as proof tokens.

NUFF SAID!