Guys, and esp. dahawg123,
Wouldn't worry about CTC having problems with people knowing what goes on in the selection, it still comes down to how you do on the day, and CTC are smart enough to understand and see through the prep you've done beforehand.
You get various types of people getting through, it's quite interesting to look at the guys that have made it as they seem to fall into two distinct personality types ( guys who's been through it all will understand what i mean! ) CTC know the type of people they want, and they will either spot that in you or not, you can't worry about it too much.
PS faking it and NZ isn't the problem, NZ on the whole is good fun and really not too challenging, it's when you get back to the UK that it really starts winding up, all still good fun but a lot harder work!
WBV