Not a problem Imperial Fighter at all...
I am finding this all very confusing myself but interesting all the same and find myself swinging to and fro between thinking "Yes" we should be able to see it and then recounting that and then saying "No" we should not be able to see it.
Although I feel discovering that the POV shot we have been looking at is cropped.. I would like to touch on something you mentioned earlier about the mandibles face being under the ring (well it is in the ESB and ROTJ version anyway) I am not sure I have no time today to really check this but will do soon. But as I have been saying about height gain and if the cockpit in the ESB & ROTJ versions is actually also higher.
I may actually go to the RPF and ask for a few snaps out the window from Stinson on this model matched closely to the shots in the films just so we can settle this fairly conclusively as we are playing silly guessing games and trying to figure out pespectives on some pretty strange angles.