I created masks and painted the serial number on the fin - 5mm high numbers is about as small as I think the cutter can reasonably go, particularly for closed characters like “6” and “9”.
I also cut masks for the “stars and bars”.
Here they are ready to paint the white.
Once that is done I will mask the white and spray the red stripes.
Then I remove the blue mask and spray the blue.
At least that is the plan.
The fuselage markings fit awkwardly and I hope they are “square”.
That is one area where decals are better.