I've struggled over the last year with finding a PT that didn't consistently stain (I manually PT - previously with a Viper Mini and now with a Wagner sprayer) and FBX Nova has been great so far on both light and dark garments. I've especially had a fantastic result when pretreating B+C 3001 and 3001CVC tees - no staining, no fibers sticking up, and a vibrant print. Not related to the PT, but also love using Firebird's DTF film sheets!