Ultra Stick Problem
Many years ago I built an Utter Chaos that was covered with white and pearl yellow monokote. I could not see the model well at all, but especially if the sky was the least bit cloudy. I sold the model to an individual that could see it well. He still has it. I would have buried it long ago.
You can't fly'em if you can't see'em. Stick with color combos that work for you.