Physics wise and logically wise the inside of cases wont get as clean as the out side in tumblers regardless of the type of media used. But; when you look for the most bang for your buck compare a hundred dollar operation to a four hundred dollar investment…if you can afford it then go for it and the best of luck to you.
The simplest method is to clean your media as you tumble it, that way it takes a long time before it truly gets dirty and there will never be that dusty cloud when you open the tumbler.
When the weather gets better I will be studying on ways to clean up media and make it last even longer. I have several ideas and will post my results.
What I do is use disposable latex gloves while working with my brass. The gloves keep my hands clean and protected from any residue.
As far as the inside of the brass, I don't really care if it shines or not.
Tom
