If I lived in Europe I’d use Revell Aqua Color, but since I’m stuck here, I have to improvise.
Testors Model Master Acryl is the foundation of my paint collection. I now know I can supplement that with Badger Modelflex and Xtracrylix–but I wouldn’t really try too hard to find Xtracrylix unless there was literally no choice or option. Some RAF colors ARE hard to find, so Xtracrylix would provide them. Colors such as Hemp or Desert Pink, for example.
For white and yellow paint, I’ll use Tamiya gloss acrylic versions of these colors.
I wouldn’t waste my time or money on Humbrol or Vallejo products, with one very prominent exception. Vallejo Metal Color is one of the most important inventions (to me) of the twenty-first century.
So there you have it. Vallejo Metal Color. MM Acryl/Badger Modelflex. Tamiya gloss white and yellow. I also happen to like Tamiya flat black.