I used to think color blindness was an unnecessary hurdle and not that big of a deal. I've had no problems, but watched several good buds deal with the very issues yall are discussing. FWIW, nearly all modern fighters have color displays and color blindness, especially red/green, can be a significant problem. I'm grossly oversimplifying, but you shoot the red guys on your display and don't shoot the green guys. I'm sorry for the guys that have to clear this hurdle, but I'm not sure how comfortable I'd be flying with someone who struggles with certain types of color blindness.