I recently decided to take up spec map practicing again, and I think I might be on the right track.
Using the tips TUS provided on WZ's forums, I've been playing around not only with making spec maps to my liking, but also applying them and playing with the settings in 3DS Max.
When I got the settings I thought looked right, I ended up with a personally pleasant surprise, a metallic look to the hull.
Please forgive the size of the renders. I just couldn't not make them that big.
Comments and suggestions welcome.