Ranger, I've looked at some of those options, but have come to believe the vibratory would get the job done faster. On really dirty cases, the Thumbler has to run for hours.
YRU, that is about what I had in mind, just didn't know if the cheaper ones were durable. I used to think that spending more money got better stuff, but nowadays it isn't so, I just try and use what others have had good luck with.
Have ya'll seen the new ultrasonic ones used?
Ben