Fair enough and thanks for the response. If I am correct collimation is the illusion that when you move from the center the HUD will dissapear. In other words, to see it you would need line of sight to it. Is this needed for the 3d gauge? If not, that would solve a lot of issues since this is a simulated enviorment and we can really control the hell out of it. The hud is built into the model of the aircraft correct? Or can I actually create one?  :o