Just took the initial test,
some suggestions:
Pace yourself on the aptitude test, there is plenty of time to do all the sections. If you rush it one after the other you can finish in 1/2 the time, but your eyes, hands, and brain will be numb by the end. Give yourself a breather between each challenge.
Work fast on the reasoning test, especially the second section. Questions get harder and harder, to my knowledge most ppl don't finish or have to guess by the end. So don't get stuck on one question for more than a minute ~ move on.
Presentation, erm.. be smart, remember what you can, use notes to help you out. This is a test mostly for your english, so content isn't so important. Having said that, if you finish too early, or just reread the the CPP description from the cathay website, then expect some follow up questions. The examiner is nice, polite, but curt; expect to go in and get started right away.
English?... British accent .. grrr
