After seeing the pic posted by Blowhard and others, I think the seams of the wing tapes should have almost no specularity instead so I darkened them accordingly (maybe a bit too much - I'll have to tweak the opacity of the layer). I have also weathered the underside fabric a bit more.
I'm going to test colour specularity in cfs3, see if there is any effect, and then tweak some more, but I think I'm getting close - I have to move on anyway. The "corners" have still to be done, and the details (machine gun, undercarriage, etc...) belong to another map and still need a lot of work.
current wip :
edit : for some reason the pics have disappeared; I'll fix it later
