I currently clean my brass with the tumbler/dry media method. I'm thinking of getting the RCBS Ultrasonic machine. Of course, they recommend their 'special' concentrated cleaner which I believe goes for $20 bucks a quart or maybe it's a gallon. Whatever, there has to be some savvy reloaders out there who wet clean and have a 'home brew' mixture that works as well or better at somewhat less the cost. What say you guys? Thanks for any light you can shed on this one.