Not all people of the same type are identical. I wish to survey and consider some possibilities for this, especially those that can be (more easily) identified with certain theories or concepts.
Obviously, each persons unique individual subjective experience plays in with the applications of the functions.
Here are some concepts that - I can think of at this time- that seem to apply here:
PS: Also, I wonder about situations that can generate deviations away from one's true type. Situations or circumstances that lead a person to thinking that a path or direction is "for them", but really it leads them away from - for instance- developing their ego block. Over time with luck or deliberate experimentation, going down one's 'true path' (as in, becoming more a person of their specific personality type) could occur. But it seems as though without certain lucks, or events, or guidances even... that a person could wander continuously.
Mostly, I am relating this to the concept of the Socion in general.