I read several books by the ww2 pilots last months. What I met there very regularly were "...we came from the sun", "...I got him by suprise, because he was blinded", "...we had big advantage, because we come from the sun", and so on. It will be nice to have it in Aces High. When enemy plane come from the sun, he shall not be seen, neither dot nor icon. Only when he is close (250-300ft) you can see him, still with no icon. It may add some depth to flying.
Fariz