I'm new to this but my number one problem so far is that I can't seem to completely clean all the paint off when I use Testors water base Pearl or any of the silver. Does anybody know any tricks or solvents that do this, I always have a rlarge amount of residue left on the bowl and the whole inside. I have to completely break down the gun and do a complete cleaning and it still has junk on it. There has to be someone who figured out how to remove this product, it's water based. Thank you.