Going a step further on the coding issues, how do you handle aircraft with multiple mirrors? I know for certain the F4Us had three: One centered above and another on each side of the canopy frame.
As far as usefulness, have we heard from anyone who's actually used mirrors on a real aircraft? Personal experience by someone on the boards, or a written account by an actual pilot?. Everyone against mirrors because they wouldn't be useful seems to operate on the assumption that the view would be too restricted, however if you consider the mirror on your average car there's actually quite a wide field of view considering the size of the mirror. Granted there's a window back there and not a solid bulkhead as in many of our aircraft, but would the view REALLY be as tight as seems to be getting implied?