Originally Posted by Filthy-Beast
Sorry if you took it personally, I did not quote you or call you out. I said sanding, specifically because many people will use sand paper or even nail files, the micro scratches created by abrasives do reduce surface contact area, increasing voltage drop, raising temps. I also said that doing it on contacts in good condition was not a good idea but would help older corroded contacts.
Using a white eraser from and ink pen to clean good contacts would be better.
Sorry for being sensitive. The quick written words on a forum don't work as well as a personal conversation.
Ink pen. A very descriptive southern expression which doesn't get used much up north. I love it.
Along the same lines, block eraser is a good method for cleaning plug prongs. Especially the old wheel type coarser erasers that came with a built in brush. Younger people will have no idea about those.