Multiple tumbler bowls?

[Pit4Brains]

I have a fairly new Lyman twin. I have only used the large bowl up to now and it is filthy. I kinda had the thought of getting at least one more bowl to tumble clean, sized brass and loaded rounds while using my current dirty bowl and media for post-fired brass only.
Does anyone with the twin use the tiny inner bowl?
Does anyone have multiple bowls with different media that fit the same tumbler?

 

[jmorris]

The crud that sticks to the inside of the bowl it so tough I haven't seen it come off and stick to cases, loaded or not.

The only thing I used the tiny lyman bowl for was moly coating bullets.

 

[dickttx]

After seeing a posting on a forum, I have started spraying the inside of my tumbler bowl with Windex. I let it sit while I run my brass/media thru the separator, then wipe it with a paper towel. Clean as a whistle. Let it dry before putting the media back in. Don't wipe your face with, or chew on, the paper towel.