I also used the testors model masters for markings on both of my spitfires in addition to my fw190d9. I also would rather use the tamiya paints but there is no-one local who stocks them. there is however a local source for the testors so thats what I use. The model masters work great for markings and can be applied over just about any kind of paint. Frisket paper makes excellent masks for this kind of work.
Evan Q.