Wow, that's interesting. I had been proceeding with the idea that I'd better be careful, because if I'm even a little off, (like Decision vs. Action) I'll be messing up the whole plot with the wrong PSR. I guess I feel reassured.
This absolutely has been my experience. If I knew how much this would be true when I picked it up last year, I kind of wonder if I would have done so. (But then there are the aha moments...)
At some point here when I can better formulate question, I want to start a new thread about the best way to approach Dramatica for writing at any given stage of one's understanding.