I was in a similar situation - did 2330 L2+3, 17th, then immediately on to 2391. If you put in the work and be sure you know GN3 inside-out you *should* be fine. I didn't get much (if anything..?) about special locations in the paper, except the scenario you're given in section 2 might be set in one, so a knowledge of considerations you'd need to take regarding installation would be useful. Read, read, read GN3 until you can skim over it and basically recite it. When you can turn to a random page and talk yourself through the requirements from memory, you're doing well.
That said, it's not all a parrot-fashion memory game. Get to know the forms well, fill some out for practice. Questions like "which forms require a Ze value to be recorded" (just as an example) crop up, so you should be able to recall that from memory. That sort of thing will only come from experience. Also draw the earth-fault-loop-paths until you can do it automatically, doesn't always come up but I had to do it and luckily it was something I'd practised and practised.
Of course, whether all this makes a truly competent person is another matter - know it, understand it and use it![/QUOTE
Thank you for the encouraging reply m8, ive read gn3 lots of times now and am about to dedicate another saturday to it. :cheesy: