BF109 - Can't we just have the gunsight in the middle?

[heloguy]

I guess if it ever came to fruition, it would be a big help to those that don't use Track IR, as their head would be held (aside from the headshake affect) directly in the middle. If you lean at all to the left, though, it should not be very far before the image would disappear. The effect could also be used on the Spitfire and Hurricane, if someone is leaning to the left or right of their sights.

The mount you showed does seem to have a telescoping piece, but I wonder exactly what it would be for. It's certainly not made for making fine adjustments and then being fixed in place. It looks like it only adjusts from one extreme to another.