topper,
as people said before... it is all about exam technique... not about knowing the 727...
I just recently got out of uni... and I was up to speed on how to speculate and what not to study for any exam... I got 70 % the first time... I know lucky, but who cares.....
go back again... and dont feel ashamed, I know a chick who went more than 4 times up there... and another guy who is twotter captain and he did it 3 times and only got 72%... you will get there, it's like getting your 1st job in this industry.. persistence is everything...