I think you've tamed the stretching where the metal is concerned. Looks really nice.
I've never been happy with black paint but yours looks better than anything I've tried (and probably seen for that matter).
One minor tweak to consider is moving the bottom edge on the nose paint up so it's even with the fuselage-to-wing root bend. It helps hide it a bit. Two or three pixels should do it. Just an idea.
Good stuff.
Thanks all.
Vraciu, if you are talking about the lower border of the black paint on the top of the nose, I have it that low so I can use a purely straight line in the diffuse map - I didn't have to "bend" that line down at the front to account for the complex curve of the nose section. Without the bend, I avoid the slightly messy look of the border being fuzzy where I had to erase paint to create the curve. The downside is the black extends a bit too far south back nearer the cockpit - 2-3 pixels, as you say.
Haven't fully decided whether the tradeoff is worth it yet, but even as small as a 1px eraser brush, when I create the curve of the antiglare down in the front of the nose, I get noticeable antialiasing "fuzziness" of the edge. Was able to avoid that look, but again as you say its a little too low then back near the cockpit and wing root area.