So, I actually called AAMC and asked them how they "curve" this wonderful test. The guy I spoke with told me that there is NO curve at all. They base their grading on some "complicated formula," where the harder questions are worth more than easier ones. He gave me the example where a hard question would be worth 1 point; whereas, an easier one would be 0.25 points. He also told me that we are not compared to our fellow examinees that took the exam on the same day ( I was really shocked when he said that, as I had always heard that we were).
Honestly, I was disappointed when he said that there is no curve, as I was hoping the curve would help us all on that treacherous BS section