I've read every post on here concerning ultrasonic cleaners but there doesn't seem to be a consensus as to what size. I'm looking into buying one to clean suppressors, BCG, and maybe brass even though I mostly tumble. So you guys that have them, can you recommend a size and why you went with it? Right now I'm leaning towards a 6l mainly for the extra power but I'm sure I can get by with a 3l for my uses. Thanks.