I airbushed a basecoated with 74.602 Black Surface Primer. This was then airbrushed with 70.985 Hull Redfrom a steeper angle to leave the black as a first shadow.

When I tried to apply the next colour, the airbrush behaved very strange, making strange noises and blowing colour out the top of the reservoir... I discovered this as the reason:


I ordered a new nozzle already...