I was working on a couple different projects here this week. One being the ERTL Knight Rider kit and the other one being the Testors Roswell UFO kit..The crew tub of the UFO is plagues with those stupis ejector pin sink holes and in very tight places that really can't be sanded too easily,so I just took some primer grey paint on a small brush and touched the brush to the surface,and let the surface tension draw the paint into the recessed dents,and self-level itself.
It takes a couple times of light touches, but in the end,with controlled paint pooling in the holes,the liquidiity of the paint alllows for minimal sanding if any when it's dry. yes..the paint will shrink a bit, so it will take a couple applications..give it a whistle and see what ya think.