For many years I have done all of my painting & weathering with enamels, chalk and a few brushes, (I'd hate to think how many brushes I have bought over the years ) with the occasional appearance from automobile aerosol canned paint. I recently bought a compressor and 2 airbrushes off of eBay and I plan to venture in to the world of acrylics. I noticed that there are quite a few different types of acrylics for sale, some that are fired, some that are not and some for outdoor use! Are there any acrylics that are better than others, any that I should steer clear of, or are they all basically the same? Has any one got any tips for someone new to airbrushing?