what kind of cpu and gfx card were you using for the 3 monitor setup ? did it run smoothly with those specs ? (to get an idea of what we will need at home to run a similar 3 monitor setup smoothly)
the onscreen view looked a little distorted in your 3 monitor setup, and i saw a mention there are some minor gremlins to resolve for RoF to get it working correctly, but where you able to select the appropriate FoV setting for the 3 monitor sizes ?
and once setup with your FoV's, where you then still able to use "snap FoV changes" (with all 3 monitor views staying locked together) to get a brief wider FoV (for ex in a dogfight to briefly increase your peripheral vision), or a more zoomed in view for a brief precise aim at another plane when shooting/aiming
il2 uses those snap zoom/wider views, but it could be done differently/better in other games, for ex FoV could even be locked in during game setup for your specific monitor size (in the same way some other games ask you to specify gfx card and cpu, after which they set the game automatically for best/smooth gameplay. for flightsims the correct FoV setting would be so all ingame objects look their correct sizes (and your cockpit area has the right size dials and instruments to)
Be advised, we got zips in the wire