I polished mine last night.
I have also disassymbled it to some degree.
The copper neck is copper and not plated as i had thought. It is a very well made piece but the tolerance are loose, iassume for eases of assymbley at the factory. It has a nylon bushing at the neck I believe if someone made a bushing with closer tolerances this would tighten everything up . I may have a run made. The bushing has a spring and detent ball configuration so if you take it apart be very careful as it will pop out....I will post pics later.