I'm a firm believer in using supersonic ammo for hunting. It's gives better ballistics, better knock down power, and is much more humane. Just as Lawman said.
However, if I had to use sub sonic ammo for some reason I would not take a neck shot. Just as Bldsmith said above, there isn't much hydrostatic shock wih sub ammo and there is only a small chance it will interrupt the central nervous system. Hunting with subs is like hunting with a bow. You have to hit vitals and let them bleed out. However, with subs you have the option of a head shot (a small and always moving target) compared to a bow.
Good video TLM. I hope it helps explain why subs are not nearly as effective compared to supers. I know you put in a lot of work to make this. Its very appreciated.