Thanks John, it would certainly be easy to get really carried away with weathering but it is great fun to do even if it’s far from perfect as yet. Practice hopefully will make it better with each new model.Carl.
Just reading what Jim has said sounds about right to me. I'd spray in very thin coats, letting each one dry, and increase the pressure to 20 psi.
The second photo by the way is great, nice weathering and not over done.
Carl