One thing regarding head positions is that having them enabled isn't always the best depending on the pilot and their style.
When I get into a fight, trackIR gets flicked off immediately, as I'm far faster and more accurate with where I want to look with the hat I've been using since they invented hats back in the 286 era.
Also, some pilots, myself included, can use the hat view system extremely rapidly. I often am looking 2 times per second upon reviewing my films, and I'm so used to checking 6 quickly while in a fight with another contact, or even just keeping tabs on that one contact during hard maneuvering - even for me it's hard to follow, and I was the one doing it.
So, if you put up some training videos, please bear that in mind, and maybe put up both options, with and without head positions if you're using an outside film viewer of some sort.
Can't wait for some of these, yay!