Thank you for your reply, Chris. Yes, I’m building 06018. There’s an insert that comes with the kit that shows the paint schemes of two actual examples of Mk.II aircraft. One scheme is for a Polish squadron and the other is for a British squadron. The upper surfaces on both aircraft are a tan color, even though the insert says to use Humbrol 155 (olive drab) for these surfaces. Olive drab and tan are obviously two very different colors, thus my predicament.