Spraying acrylics is different from enamels. I was told, from someone on here, to thin the Aztec paints a little more. Keep the air pressure as low as possible, higher air pressures seem to dry it before getting to model. Keep a Qtip with Acrylic cleaner handy to clean brush tip off. During long spraying sessions the outside of tip will get paint drying over end of it. I use small amount of Vallejo Flow Improver in paint. Temperature and humidity seems to effect it more than enamels. The best tip would be to practice, practice and more practice, keep in mind that it is different that enamel. But will not stink your work area up and dries fast. Use your respirator. Hope this provides a starting point.