Single stage is all I use. I have never used a base/clear system. I generally use acrylic enamel.

I tried using acrylic urethane on the last pump I painted. I did not like the way the urethane flowed out. seemed very orange peely to me. That could be just me though since I have never used it before.

I used acrylic enamel on the 1st pump pictured and urethane on the 2nd...

photo 1.JPG blender.jpg

Got Socony???