My personal prefrence is that the nmf on warbirds is satin in scale sizes. This being well used planes mind ya, not just off the assembly lines. Climate, combat and general use weathering on scale models looks more accurate to me in satin, as scale and shading we have to do to make them real.
Again this is my own personal preference and not to be construed as hard info to you all. I just needed to know the ratio's ty.
-Jeff