I am doing my testing in Montreal in November, I will be back after that to report on how it all goes and what they are looking for. I have been spending a little extra time on spatial relations, specifically the folding boxes and visual instruction stuff.
I did pretty well on the sample tests on the site listed above (about 90% overall, running with the stated time limits) but I don't think that is truly good enough. I am pushing hard to get right near the top