I think the point some of these gentlemen have been trying to make is that "head" movement is too restrictive in the F6F, while other gentlemen have been arguing that "head" movement is too lax in general. My point was that in real life the pilots did move about in the cockpit
Under what Gs?
There's a world of difference looking behind when you are sitting in a cockpit at normal 1G level flight, and then trying the same thing while making 4G breaking turns. If anything else, the restrictions could simply be considered a compromise between the two.
Don't get me wrong - I'm all for having a totally sophisticated system that might simulate the varying degrees of body/head movement under different G loads. Unfortunately, since AH doesn't have such a thing in place, HT simply drew a line somewhere and made a new standard as opposed to the ol'
"mega-wide panoramic Linda Blair view" we used to have. The forward/backwards/sideways movement inside the more recently modelled planes are a lot more restrictive than the old ones, and F6 is certainly not the only plane under this influence.