I received my stainless tumbler last Thursday and it has been used almost every day since. I love it.
Oh, and to all you naysayers that it takes a lot more time and equipment----BS
I used the same Midway separator and 5 gallon bucket that I used with corncob media.
I drain of the water in the sink, pour the brass and media in the separator just like I did with corncob.
I found a old mesh colander, which I pour the brass into, swish it around in a sink full of water. Shake off the excess water, pour it on a towel and let it dry, which takes a hour or two. When it warms up, I will put it out in the sun on the deck, 30 minutes if that come summer. Oh the horror
Yes, a find stuck pins in the flash holes, but guess what, they will pop out when sizing or you have resistance if not. But then again, I inspect my case before they get loaded.
Honestly, I have never gotten more than 30 tumblings out of corncob before it was shot.