OKAY So here is my take! I am putting this all in so I can quote this later when the scores come in.
First of all, background:
AAMC 3 10 12 8 (30)
AAMC 5 10 9 9 (28)
AAMC 7 9 11 9 (29)
AAMC 8 12 10 9 (31)
AAMC 9 11 11 10 (32)
AAMC 10 8 11 10 (29)
AAMC 11 8 12 10 (30)
AAMC Average: 10/11/9 (30)
Theoretical Minimum: 8/9/8 (25)
Theoretical Maximum: 12/12/10 (34)
Expected Going In: 10/11/10 (31)
I was nervous heading in, but my pacing ended up being just about where I wanted it.
Physical Sciences: I felt that the passages were all convoluted and had extraneous details that were not needed to answer the questions that were asked of them. I noticed this quickly and for a few of them I only consulted the corresponding passages for one or two questions out of a set. I felt that there were some tricky worded questions and some not so straight forward. I straight up guessed on two of them because I knew doing them out by hand would take me a while and would just be wasting precious time. There were some calculations, but nothing too crazy.
I finished with about 30 seconds left. I feel that I likely scored a 10 with a possibility of an 11. I would be surprised if I was below a 10 on this. Felt pretty standard to me.
Verbal: The verbal sections were all relatively straightforward IMO. They were a little wordy and some of the questions a little tricky, but nothing more than normal. Considering my performances on AAMC 7-11, I felt pretty confident on the passages.
I finished this one just on time as well. I feel pretty confident in an 11 on this with a slight chance of a 12 (fingers crossed). I would be surprised if I got below an 11.
Biological Sciences: This is hard for me to predict. There was more organic chemistry on it than I felt comfortable with. That being said I felt that the bio passages fell into my strong suit for the most part and I didn't have too hard of a time wading through the convoluted passages. To me this felt similar to AAMC 11 in difficulty.
It's harder for me to predict this section because there are at least ~6 questions I straight up guessed on and am unlikely to get right. Assuming a similar scaling to the previous AAMCs I think I may have just barely scooted into a 10, but I wouldn't be surprised with a 9.
In summation: I didn't think that the test I took today was terribly more difficult than AAMC 10 or 11. I do believe that background knowledge I have gained from upper level and graduate biology courses helped me in understanding the concepts presented on the test, but even those that were unfamiliar were doable. The PS had its tough questions, but I'm hoping at least one of the ones I had trouble with was experimental.
As far as specifics on test questions, I can barely remember. I blacked out
Final Prediction: 10/11/10 (31) with a maximum of 11/12/10 (33) and a minimum of 9/11/9 (29)
Hope this helps someone! And I hope I don't look like a jackass when I quote this in a month
Upon further reflection, I think I either did better than expected or potentially completely bombed and am oblivious to it haha, but this could just be the MCAT hangover talking.
sitting next to me made this comment to me: "that's one more number we have to memorize". Man, that comment wiped my memory clean, I couldn't even remember the units of Planck's constant, let alone the number. I wanted to ask him if Avogadro's number was 10^-23 or 10^-22 but was too embarrassed. Good thing I didn't, because Avogadro's number doesn't have a negative in the exponent. 
