I would say my black belt test was tougher. It was just not the same... my brown test was really physical and all in a row, but it didn't last as long as my shodan test. This one was long and more psychological. We could be for 20 or 30 min (I just cant remember) in horsestance. And during that time, if you think, it's too bad, you really have to forget pain. There is more people watching you at a time, you always have too be intense, and I didn't knew lots of people. so I would say my black belt test was the worst. *sorry for my english, I speak french...