As I've been asked a few times I thought I would add:
EP's are not as awful as you've probably been told / heard.
They require a lot of hard work and effort, but honestly if you do the work there is no way you'll fail.
I'm not sure why EP's have gotten such a bad rap - I presume because its the most difficult component of the entire training program, but that doesn't mean you should be bricking it!
Besides, if you think about why you learn them and why they are important you suddenly take a very keen interest!
If you're a bit of a glutton for punishment (like me) you might even enjoy them....