wet sand single stage acrylic urethane

Clear coat base coat VS. single stage polyurethane are different animals and the color coat is easier to discolor in way less time! The main thing is to keep moving and if you have to experiment do it in a spot that is less likely to be seen!
Single stage,non metallic paints: The pigments appear on the top,giving it wet look... The newer single stage urethanes,add more clear ,and a binder to balance to flow better...If you can actually shoot paint, you don't really need a BC/CC,on a solid color.. Not arguing with you Tuner,just sharing my experiences as a hobbyist painter,and paint mixer/salesman....