So I've run into a snag, I'm painting the exterior body parts, and for the most part it's come out pretty well, using Tamiy yellow X-6, with a 1:1 thinner mix. I've applied about 4 layyers, but I'm seeing occaisional "bubbles" for lack of a better term, see the little dark spots...
I'm not sure what's causing it? I've never noticed this before.