On the first couple, when I would go over the entire test, I would take about an hour and a half, but by the end, when I wasn't reviewing verbal (it just seemed a bit pointless to me as there were many times I disagreed with the reasons they gave for the "correct" answers) it took me about an hour. I'll admit that I skimmed through quite a bit of the questions that I got correct that I was pretty sure about how to do. Obviously, make sure you truly understand any questions that you get incorrect. If you have the patience, it would also be worth your time to intensely review each question and how it relates to the passage, as this will give you a better feel for how the test writers formulate their questions from the passages (this, by the way, is one of the best skills to develop for this test). Basically, take whatever time you need to effectively review the entire exam. Oh, and as for the writing, the first four AAMC practice exams I did both essays timed. The advantage to doing the essays is that they do wear you down mentally before the biological sciences, so having taken at least a few full-lengths will give you a true sense of the amount of energy you will be investing into the essays on the true exam. For the last six practice exams I took, I did not write the essays, but if you have the patience, I would recommend doing them. Hope this helps!
