I heard you only need Meguiars compound to polish them .Polishing screws really is this simple. In the cue or out.
This screw looks pretty bad but,
Run the lathe in reverse, (counter clockwise) duhhh
Dremil runs clockwise.
2 different bars of rouge.
Red 1st (compound)
Then white last.
1 buffing pad for each. Pennies on fleabay.

I tried with 000 steel wool plus compound and polish. Barely shined it.
It's sad that Uniloc contracted them to a south of the border shop .