Let me give you guys a piece of advice that I wasted hours on SDN wasting.
The tests only depend on your own weaknesses. I thought 5 was one of the easiest, along with 10. I thought 3 & 4 were the hardest, and I got my lowest scores on them. Classifying a test as "hard" or "easy" is only, really, only dependent on it hitting your weak or strong points, respectively.
I spent way too much time on SDN trying to justify a poorer score on an AAMC because the test was "overwhelmingly hard" when it really just showed what I was weak in. Inevitably, some will share your idea and think it was tough; some will think you are crazy. All you can do is learn from it.