Thanks George (@gblair). This foiling has been a useful experience. In addition to giving me a new tool for metal finishes, it has helped me better understand how to weather metallic surfaces (or at least I hope it will after I do it).
Another really useful part of this is the realization that using foil in this way is idea for representing overlapping panels or raised details on the model. Some things to spring to mind are wing fillets, overlapping access panels, overlapping aircraft panels instead of butt joined panels.
Another idea I have which I will experiment with in the future is using my vinyl cutter to cut templates which I can then use to make custom shapes in the foil. This something like initially laying foil onto an elevator, then using the template created in the vinyl cutter as a cutting guide for the foil to cutout the underlying rib structure that might press against fabric covered elevators. The foil is so thin that it should work. As I said, it's an idea that I want to experiment with. If it doesn't work for this, it might work for something else.
Today I got one of the coolest steps accomplished on the Thunderbolt. Not a big deal in the scheme of things, but it adds a huge amount to the look of the model. I'm talking about the cowling and engine. Adding this completely changes the character of the model.
I'm going to be doing the anti glare paint on the fuselage top tomorrow. Getting close now.