Youtube will show you some HF options for SS pin cleaning, I have the Frankfort SS tumbler as well, works good. Getting the pins out and tracking down the strays are a pain to some extent but the cases are really clean. I use dawn soap, lemishine and water for 2-3 hrs depending on the # of cases. The pins will beat on the leading edge of the case neck if you tumble them too long. Get the magnet for easy effort in tracking down those stray pins.