With PCGS MS 66 FB coins realizing $100-$150 at auction, I don't think it would be worth the fees to have it regarded unless it was a lock MS67 FB. Enjoy it for what it is.
We're talking about this one https://www.cointalk.com/threads/got-my-first-cac-submission-back.287251/
I'm gonna have to start asking for slab generations in order to get some of these GTGs correct. That coin is an easy MS66 and I think it should be MS67. As I stated in my original post, the FB designation by PCGS does not surprise me.
I totally agree with you. In my opinion and comparing to my other MS-67 Mercury Dimes, this one is MS-67 all day long.