I took the Myers-Briggs in high school, and was an INTJ or P. I had a friend who answered too "evenly", ie, I think she was both of everything but introvert/extrovert (she was the former). According to the test I think this gave her some kind of personality disorder...which might not have been so far form the truth. Despite being intelligent and attractive, she had tendencies to stalk old boyfriends and join cults...

INTJs really want people to make sense

I guess I might as well toss out that P, because my personal obsession with this, and inability to detect, follow, or respect social rituals has led to an obsession wiht people making sense...I thought everyone expected that...:)