Mike, great to see you are still here now and then! Sounds like the bird is getting closer and closer!

I would check with a machine shop in the area. Should still be a few good ones in San Carlos/Belmont or Redwood City that can give you the best advice. But I do agree, cosmoline is about as good as it gets. Most machined parts are shipped with this stuff on it... But a good light oil will do the trick. Just re apply now and then.

Just bought a set of heads for my bird recently too, but they are not new... and when I build them up, tye will get swapped out right away.

Good to see you chime in!

Brett!