Ok, let me get myself in trouble here, but honesty has to rule...
First, Barnes has 10,000 times more talent than I, so props to the man. However, aren't we missing the point of the thread?
First, what the heck does a Rash sighting have to do with anything? Yes. he chokes too, but this isn't a comparison. It's a question of Barnes' performance in the clutch.
Second, it doesn't matter what Barnes did to get there, and doesn't matter about the first two in the 10th. There comes a point when the game is on the line, and that last shot was it, not the first 2. My wife and I were both watching, and we both knew that Barnes, in that position, had a high probability to throw a bad ball in that situation for the first time of the day. He's just been his history. I knew it when I saw his face. Go back and look at his expression. It changed.
Damm, the man is great, one of the very best, but it got to him. Who in heaven's name cares what anyone else did at any other point in time? That's not the question of the thread. For the first time all day, in that most needed shot of the day, he wasn't close, and made the only really bad shot he rolled all day.
I am an amateur. I would have made the same mistake, and yes, it would have been the pressure. But so did Chris Barnes. I thought he shook the demon 2 years ago. Now, I'm not sure anymore.
The OP was right to pose the question.