I'm working on a 1st FG P-38 pictured below:

This is a natural metal skin with some significant painted areas (yellow part of booms).
Problem is, with the defaut specularity in the skin material.txt file, the yellow is so reflective it looks like gold/brass. If I tone done the specularity or crank up the power setting in the material txt file to get the yellow area looking more flat colored, the rest of the natural metal skin loses its shininess too, and no longer looks like natural aluminum.
I've experimented with material.txt files from OD and natural metal skins and played around with different Ambient, Diffuse, and power settings but I can't seem to find a satisfactory balance.
Anybody else dealt with this issue, and find a work around?