I have playing around with the idea of painting panel lines on my TF P-51 ARF with an airbrush. Pactra makes a paint for R/C car bodys that should be more durable than the enamel and more fuel resistant. What I am envisioning is to use masking tape to mark out the line and spray a light line giving a sharp line on one side blending to a fogged edge like a shadow. I am still in the trial and error phase and I have to admit that I am not good at air brushing yet. Also I plan on using a grey on the silver ind a darker grey on the OD green. I think doors, eng access, panels, ect. could be doon with two pieces of tape close together and painting in between. ????