I used a vibratory for about a month. Then I started using my concrete mixer, and I used that for several years. Like you, the dust got to me. When I was younger, dust didn't bother me. I'm not younger any more.
I built several versions of a wet tumbler that worked inside my concrete mixer, but none of them worked satisfactorily, and one by one, I discovered several of the obstacles to successful wet tumbling. (Speed, fall, volume of pins, etc.)
The compromise that fits my results best is the Thumbler's Tumbler, which is what I ended up with.
The tradeoff I had to get used to with the Thumbler's is that my concrete mixer used to process a five gallon pail of brass at once, and the Thumbler's only does a little dab in comparison. It takes many, many batches, and simply can't compete on a volume scale, but what it does do is make the sought-after "like new", shiny clean.
With the concrete mixer, the bottleneck was inspection. I could "clean" (nowhere near as clean as the Thumbler's) a five gallon pail of brass in about six hours. Have you ever inspected a five gallon pail of brass? The inspection would take forever. Now I can keep up with the Thumbler's rate, and the bottleneck is the tumbling.
That's what I wanted, because shinier brass is so much easier to inspect. That means I have a great deal more confidence in the results of my inspections.