>>9386592For another reference, this is about how the joint should look when plugged in, before putting the wrist cover back on (the cover just pops off if you wedge something flat under it and slowly push it off)
I just painted the Archetype 2.0s gray joint black with some Tamiya rattlecan and that was plenty for it to retain its color despite friction.
I also used a hand drill instead of a dremel but with the same mentioned bit size, for drilling into the hands.