I bet I could've worded that differently but I'm an ISTP. Several times taking a test I've been achingly close to being an INTP. So, being near 50% for any letter, does it feel weird or is it helpful? I'm around 53% Sensing. So living in the present as much as living for the future possibilities, and as concrete as abstract. Sounds cool, but my head won't explode, right?
Who else has this going on with any other letter coupling?
I have this with my T/F, as you can see.
This is why I think Temperament is a bit contrived. It really only works well if your letters aren't close. If you're on the border between INFJ and INTJ, you're going to look like an NT at sometimes, and an NF at others. I've been told as much. There's not some fundamental difference in motivation that exists equally across all preference strengths, types within a temperament, or function orders.
I think temperament is like saying:
Okay, you're 100% I, 90% N, 51% F, and 90% J, but because temperament represents a fundamental and observable core of personality, we assert that you have more in common with this INFP (60% I, 51% N, 100% F, and 80% P) than you do with this INTJ (100% I, 90% N, 49% F, and 90% J).
Doesn't that strike you as somewhat... ridiculous? It seems so to me.
I don't believe temperament is useless, but I do believe that it's less useful for people who are near 50% on any of a temperament's defining attributes, because they'll seem to move between temperaments depending on the situation. There's no reasonable way to define being "fundamentally NF" in a way that makes an INFJ inherently more similar to an ENFP than an INTJ or ISFJ, regardless of preference strength or functional order. There just isn't.