I've never had a lot of luck spraying tamiya acrylics. I thin them down to the consistency of milk and spray at around 23 psi with a Paasche VL Airbrush and the paint always come out with very evenly dispursed tiny/micro dots (especially Tamiya's red). The color is nice and even but never really that smooth. I have to use Tamiya's synthetic laquer rattle cans to spray large areas and only use my airbrush to spray small parts. I was wondering if I attach a "moisture trap" to my airbrush setup would it give me a smooth finish when spraying the acrylics? I beginning to wonder if that is my problem or is it my airbrush or maybe I just suck. Has anyone noticed a big difference when they started using a moisture trap in their airbrushing?