I redid the colors in British insignia blue and British azure blue. Looked better, toned down the plate colors and remained true to the faded photographs shade differences.
Friend over at another board found this quote on a super scale modeling decal site.
"The only 8th AF fighter group not to convert to Mustangs was the 56th. It was also the only unit to fly the fast, but somewhat unreliable P-47M. What sets these Thunderbolts apart from others was that they were camouflaged in some rather interesting colors and schemes. All of the ones on this sheet were painted in Insignia Blue and Azure Blue while the undersides and upper wing leading edges were left in bare metal."Go figure, I used the same colors as a test

This along with the color plates I think is enough for a decent circumstancial case as to the colors.
Now I have to ressurect a merged PSD..
