Mike.... ya gotta be careful about picking a spot and concentrating though.
For the record...I think that once you get to the point where you shoot "by instinct"...you just do it, very little will change in your technique come crunch time....but boy is it tough to pick a spot, a tiny spot.
I missed a nice buck a week ago, from a tree stand...twenty yards, broadside, head turned away from me, looking toward the walker that spooked it up. I looked up and said "thank you Lord", and proceeded to hit the tree just above him...arrow was sideways ! I couldn't believe it as he ran away.
After mentally debasing myself, I figured I would try to hit the small stump that was just next to where he was standing, so I grabbed a blunt, looked at the stump, and ahem.... noticed the small tree (branches, twigs etc) I had to shoot thru to do what I did.
Never....never...saw them when I was boring a hole in the deer's side.
Lesson learned.... ( I think)
ChuckC