When I shot mine, I put a light dust coat on it, let it dry for about 15 minutes (this based on the recommendations of the manufacturer), then shot one, medium coat. Where I had my minor problem was I shot the main airframe first then shot the parts. Unfortunately, I shot the parts (holding them by the jigs) and was sort of shooting them at the main airframe. Didn't think the spray would carry that far, but I ended up with some overspray on the main airframe. Not a big deal as it sands out easily, but it was still silly. Oh well, it will be fine when when I'm done.