It hasn't been mentioned for a while, but I want to throw in the whole "untimed" element of the Hogan.

They tell you that it's untimed. It may very well be, but I got a strong sense that it was. There's no clock on the screen, and it's only a theory, but virtually everyone I know including myself who got through the Hogan with a favorable result went fast. The instructions, if memory serves, said that each quiz should take about 20 minutes. That works out to 10 answers per minute, 1 every 6 seconds on average. Fast. When I took it I made a point of metering my pace to get each one done in under 20 minutes. I had a stopwatch running in front of me to help me with that. Maybe it's all in my head, but my feeling is that either there really is something to the time theory OR by virtue of working this fast, you're able to answer consistently because you don't slow down long enough to think too hard and/or secondguess yourself.