Functions, Temperaments, Variants and Letters

[Ruthie]

Generic typing question:

Which is most accurate in determining type - focusing on the top function (or 2), narrowing based on most likely temperament, finding the closest match in the role variants, or simply taking it letter by letter?

 

[Tyrant]

Functional, any other way is stupid, in my opinion.

 

[Ruthie]

Functional, any other way is stupid, in my opinion.

What if...

you are typing an individual who is clearly introverted and their top two functions are - I don't know - Ne followed by Fi (or Se-Ti, whatever). Would you type them ENFP (or ESTP) even if, on the face of it, it seemed silly?