@Delta - I've seen people do that under the base coat too. I'm just starting at this airbrush thing, and the panel lines look quite nice as is, so I'm leaving it.
@GreyKnight - like I said, I'm a beginner at airbrushing, even though I've made 100's of models. I'm not going to weather this one - it's Painless' Spit in 1945, so it must be in pristine condition, right?
@Tonar - ummmmm, no! Though my boys are tempted!