Hello back,
Here are the only two areas where I noticed the speculars were not showing up and so restored these files to original settings.
I don't know Bob; I cannot find in MCX a display like yours so I cannot check it.
Here is the model with the air intakes refined in the wings.
I added a fresnel ramp and checked the specular for it on those two textures.
The spec texture is assigned to both the fuse and wings in the spec level slot as before; bumps as well.