Great test! Fast and to the point.
My result reminds me of something Eric B asked me in another thread. "Do you think you could be an E?"
This table suggests that your preferences are most likely to be for ISTJ or ESTJ.
But I think of myself as an Introvert.
Function Attitude Scores
Your mental muscle diagram suggests:
your dominant function is Sensation and introverted
your auxiliary (second most important) is Thinking and exactly on the boundary between the two worlds
your tertiary (third) is Feeling and exactly on the boundary between the two worlds
your inferior (fourth) is iNtuition and introverted
And this confirms my thoughts.
Great test overall.