Createx recommends 25% flow enhancer (called Createx 4030 balancing clear) when using their Auto Air, Createx Illustration & Wicked Colors and 20% for their Pearls, Aluminums and Metallics. I usually use 25 to 30% reducer and shoot in the low 20 psi range. I spray bodies with a Procon PS290 and other parts, sometimes, with a Paasche H.