I think it may actually show just the opposite. That he was OVER prepped, OVER prepared.
An example of this was at the end when he was trying to show that Romney was a flip-flopper. That was something he'd OBVIOUSLY planned to say. He'd memorized it and practiced it but unfortunately messed it up. That one sequence colored the perception of his entire performance.
Many people didn't like his in-state tuition comments but he said them well.
When Perry is out among the people speaking extemporaneously, he's articulate and at ease. I don't think he's been at ease in any of the debates.
well, you have to prep thorough...and smart.
somewhere, somehow, he dropped the ball....