Some use Brasso or something similar on the brass switch contacts. Actually a pencil eraser will do a very good job. Keep rubbing the black stuff off the eraser (I just rub it off onto a towel or my jeans) and keep going until they contacts are nice and shiny.
I use alcohol to clean the end cap, the inner threads, and the adapter threads. Then put a very light coat of Noalox on the threads and work it in.
where to get noalox?
kind of expensive.
you want to sell me a very small bottle of it?
is that safe to use on threads?
EDIT:
so just polish with brasso with toothbrush. (I just bought some)
use isopropyl alchohol on threads..... maybe use a Q tip?
wash with water to get the crap off.
thats all I got so far. that work?
I'm going to give it the cleaning soon! hope i see good results!
You don't want to inhale that if its on the ends of ur threads.