I remember seeing that vid a while back. Not sure, but it did look like he was hitting the same little area (in front of the deer) each time. And in the shooter's defense, I've had my scope get bumped and be off (I think it was 8" low at 50 yards). Now I'm anal about checking the scope.

Buck fever sucks, but it's usually worse if I have a lot of time to watch the animal. On quicker shots, I shake like crazy afterwards. It helps to focus on breathing slowly and trying to slow everything down.