VC visibility is always an issue, one that a properly dimensioned cockpit will fall short in! Spending a whole bunch of my life aloft as a pilot I have thought about this issue a bit. As we have binocular vision, we have somewhat of an illusion of seeing right past close objects of narrow dimension, and our head is constantly shifting position, filling in much of the mental picture of vision. Track IR helps this a little. Some aircraft (DCC's P-38's come to mind) have narrowed the canopy frames in the VC. Sometimes this does not look quite right, but more closely replicates what we can actually see while flying the airplane.
Flightsim involves many compromises and deviations to more closely replicate the flight experience.
Cheers: T.