I got INFJ the first time I took it. I took it under normal multiple-choice test answering protocol -- check one answer for every question.
Then I went back in the thread and saw that you didn't have to check anything if the offered answers didn't quite fit and that you could choose up to two answers for each question. I tried this way and got INFP. I tried again and got INTP. I tried again and got INXP.
So, taking the test within my instinctive context, I test an INFJ. If you take away my rules and get me to start analyzing things, I test as some sort of INXP.
Latest result (my earlier results were written over each time I reevaluated my answers):
Introversion (I): 16 versus Extroversion (E): 2
Sensing (S): 4 versus Intuition (N): 11
Thinking (T): 6 versus Feeling (F): 6
Judging (J): 8 versus Perceiving (P): 16