Can a coin hurt your rating?

Can you have a coin that will hurt your rating on the set registry? I have a MS-64 1943 Lincoln in my set. Its the only one I have graded so I put in the set. Does this hurt my set ranking, not that at #39 it really matters. I just updated it with some nicer coins and filled a few holes so I should move up some.
Brian
Brian
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This fact tempted me to buy one of the ugliest AU58 SLQs I've ever seen. Price was at AU50 grey sheet, but I worried I'd break my glasses if I looked a second time!
What the heck is he doing with THAT coin in there.
It would look good in my "other" set. Hoping to do the short set in 64's
Also wanted to do the ENTIRE set in BN, but I figured it would cost me $2100 in fees.
Re-elect Bush in 2004... Dont let the Socialists brainwash you.
Bush 2004
Jeb 2008
KK 2016