Temperament pairs do very similar things. They can act and behave alike, and they usually have a very similar temperament and even a similar world-view. You can easily confuse the two personalities when looking at intentions, but they both have different intentions, being of a different quadra of temperament of course, you can imagine of sensing vs intuiting differences.
I discovered that every sensor has a temperament pair intuitor, and that has to do with their temperament, of the four. Both NTs and SPs are pragmatic and both NFs and SJs are cooperative. This poses as the most accurate scale for comparison between Ss and Ns as divided units.
I found that if one type is a Melancholic-Sanguine, Melancholic stands for IT, and Sanguine stands for SP, the ISTP will have a Look-a-like of a Melancholic-Choleric, aka the INTJ. They have a knack for the schedule and act out plans in an order of standards and have similar temporary intentions. Body language can even be quite indistinguishable. They most likely have a differed outlook on life, but they chose to act quite similarly and I've heard specifics on type relation from many people. but not this general concept.
I'm backing up this theory with all the other types. I'd like critique, but also I want people to fill out some definitions and similarities on the temperament pairs. If you have something authentic to contribute, I will add it to the list.
So you know how it works.
Temperament X - Unification 1 ~ Temperament X - Unification 2...
So Melancholic Sanguine ~ Melancholic Choleric.
Help me make this clearer if I have failed to do so.
I'm not really copying socionics, and atleast I don't think I am copying something else, but it is pretty obvious, I've heard various opinions about a few of these, collected them, and I'm sure it can be agreed upon/changed for the better or destruction if its just a bunch of sling-druble.
INTJ-ISTP (need definition) Melancholic Pragmatic
INFJ-ISTJ (need definition) Melancholic Cooperative
INTP-ISFP (need definition) Phlegmatic Pragmatic
INFP-ISFJ (need definition) Phlegmatic Cooperative
ENTJ-ESTP (need definition) Choleric Pragmatic
ENFJ-ESTJ (need definition) Choleric Cooperative
ENTP-ESFP (need definition) Sanguine Pragmatic
ENFP-ESFJ (need definition) Sanguine Cooperative
I don't know yet too much that this analysis can be used for, but alteast its something. I'm going to bum food at a party now.