This exam is totally subjective!
Last year, I took this exam and got a U. I then sent my paper to get remarked and got a D.
I worked my butt off for my re-sit, getting A's and A*'s in my mock tests. What did I get in my exam? A 'D'. Its ridiculous.
Anyway, I ended up getting an A overall so Im just leaving it at that. This exam is the reason I never got my A*. I got A's in the other 3 units.
Good luck guys.