Ink, this photo is of 3 fresh from the factory Corsairs before they have any tactical markings applied. It gives you a good idea of how the paint transitions from one color to another. Now, when I put some skins together, I had a base gray layer, and a base OD layer, then put a "sprayed" edge on the OD to make the transition. You can see that its a fairly soft edge. Obviously you can use whatever technique you like best.
Regardless, the new colors look really good. I'm excited to see what all of your very detailed weathering looks like on top of the new base colors. One last detail I'll point out is the engine exhaust soot color. In Lyric's pics, you'll notice its more white-ish than black. Most aircraft run a fairly leaned mixture, which produces a white/grayish color on paint (my real life aircraft had white/gray stains on the belly). The only exceptions I've seen to this were P-47s and Corsairs. I don't know if it was merely a matter of richer mixture or what. Hellcats had a lighter stain, so its not something common to the R-2800 across the board. P-47 soot comes out of the waste-gate, so I don't know if the turbo-charging aparatus makes it darker or what, but most P-47s that I've seen have a much darker soot color. Anyway, looking very good my friend.
[EDIT] I went back through Lyric's pics and can't see a uniform color. Some are darker and some are lighter. Could be they started out running them richer, and then ran them leaner as time went on.
[EDIT #2] Also, don't forget that the control surfaces (at least some) were fabric covered. Greebo does a really nice subdued fabric effect and Fester has some good ones too.
