Just kind of wanted to say something.
Test 7 is not called 7R, but just plain test 7.
In other words, this was an actual MCAT from some years back.
3R-6R on the other hand are REVISED. So this means that they are samples of questions and format of the test but not actually questions given on a previous MCAT.
3r is a cakewalk in comparison to what you should expect on the real exam. It is absolutely nothing like the test I took in August. In august, as someone pointed out, there was a lot of genetics and genetics as it applies to immunology. I thought the biology sectioin was much faster than the biology section on the practice mcats.
He11 the Biology section on the 5r and 6r were cakewalk compared to the real mcat. ON the 5 and 6r bio sections I got pretty high, but my score went down on the real thing.
Also a lot of forms concentrate on physiology as well.
I think for me the hardest of the AAMC exams were test 7 and 4R. 3R was the easiest, and 5r and 6r were also not soooo bad.
However, the best advice that I can give you is to take different tests, not just aamc tests, but maybe one or 2 princeton or kaplan tests too. Because this will give you a varying perspective.
Anyhow, good luck.