When you are in your cockpit with wide field of view or normal field of view and you press SHFT+F1 (the keys used to centre the 109 or 190 sight artificially)your view is zoomed in a bit as the sight is centred.
This has not much to do with gunsight view. The moment you un-centre the gunsight the FOW is returned to normal.
Do some tests and you will see that using SHIFT+F1 significantly reduces your FOV and thus your overall SA.
What I am hoping to achieve with a simple head movement is to be able to strafe ground targets or air targets without losing some SA by default because the FOV has been decreased.
I do not use trackir, I use my left hand on the mouse so other solutions will not work for me. It's basically an immersion thing for me. when you press SHFT+F1 you feel constrained, and are reminded you are flying a sim, a simple slight head movement to the right without any zoom will help keep the immersion alive.
As I have said no biggy, just a suggestion. I hope everyone now understands what i am refering to.

My appologies, the key I was refering to is shift + F1 and not Ctrl + F1