How come Daube?
Well, actiing in that way, you do not get anymore the correct viewpoint in your cockpit (meaning wrong view constraints), and you instrument layout is not valid anymore as well.
I understand your initial intention to re-create a cockpit, by putting the instruments all together in the bottom part of your "screen" (made of two screens), and making the upper screen acting like the forward window, but the final result is not quite you would get in real life, thus even less realistic than the normal forward 2D cockpit view.
But please, don't take my remarks too seriously, I am just a Virtual Cockpit addict, you know

I just think there can be nothing more realist (on a screen, I mean) than a good virtual cockpit with the Track-IR system.