inspirated by the Sabre specular map and the post above
I've worked to improve metal skin SPEC files of Mustang with more natural effects
here the result on my favourite un-historical skin home made. 'little lilly from Blacourt II" My wife in nose art, me as pilot head, and blacourt the village i live in france ;-)
you can download original Spec file in DCS User files P51 skins. http://www.digitalcombatsimulator.com/en/files/884981/