My primary spot is a lung shot. It's a big target that can be hit from any angle. Yeah I've taken head shot (does) and neck shots but only when it appears that the deer will escape with out ever presenting a lung shot. I hunt in Ct where there is nearly always brush, twigs and branches between me and my target. A small twig will deflect a head or neck shot enough to miss the spine or esophogus but even with deflection you'll likely still make a fatal lung shot. Another benefit is that it ruins no meat.