any of the camo scemes that have the side camo painted as well........instead of some spray can oversprays on the sides. i think about half of the skins we have now in game have yellow cowls, and i think there is enough of them.they is a large data base at that link if you go there and hit home....will give you full menu
Wouldn't half not yellow be about right?

Considering the Balkans, early MTO and Russian Front Emils all had yellow cowls to go with the mid August on Battle of Britain birds, I'd suggest more then half would appropriately be yellow cowled birds just to cover the potential special events.
Also considering we don't have the plane set to really do the Polish campaign or really even Battle of France, it does seem to lean to more yellow.