When you're typing someone (or yourself), how do you decide which traits are due to Enneagram and which are from MBTI?
A specific example of this problem (note: this thread is not entirely about her. I want the thread to get past this example): One of my friends has a very unusual Enneagram/MBTI combination (ENxP and 2w3), and I can't figure out whether she's an ENTP or an ENFP because some traits that would make her seem F (and would also suggest Te/Fi) could be due to her Enneagram; she has a Te matron quality to her in terms of wanting to take care of everyone in a blunt/honest way, but her level of care about exactitude (and how incredibly groundedly logical and calm in the face of crisis she is) suggest ENTP -- but that could also be due to her 3 wing?! It's confusing.
In the case of my friend -- as well as in general -- how can you tell Enneagram traits from MBTI traits? Thoughts?