Since I'm in the middle of restoring my Charles Parker, I was wondering what kind of lube I should use for the main screw and how much.
Filling the bar full of grease seems excessive to me though.

Is that so the screw is protected from contaminents as only the outside bit of grease would collect dust/grit? What about the bearing surfaces? What do you use there?
My plan was a coating of Redline synthetic grease on the acme threads and the bearing surfaces. But, I fully know that I don't know if that's the right thing to do so hence my question.