These discussions have helped me be able to sort out how all eight roles actually play out in my own processes. I had been struggling with whether I preferred Ti or Fi (as suggested by some others, based largely on how "enthusiastic" I can be at times).
So the issue I have chosen to use to illustrate, is one that goes back to earliest childhood, and my dom. Si parents remember clearly, and had recently reminded me of, and when I began following the processes used, it fit as a perfect example.
"Girls First"
Rule is illogical; makes no sense according to internal standard (Ti)
Does not have to be done this way; why not boys first, then? (Ne)
From what I have learned about boys and girls, there is nothing in their essence that necessitates this rule (Si)
This is a form of discrimination. Nobody wants to be discriminated against (projecting with Fe)
Stubbornly oppose rule by arguing how things should be done differently. (Te)
Immobilize with thoughts of how in a disaster when this rule is followed; boys[or men, as on Titanic] will perish. The ramifications of this practice are that girls are more "worthy". (Ni)
Thus, deceived by the perceived reality of situation (Se)
Adds to self-destructive strong feelings of powerlessness (Fi)
I have had to weigh Ti vs Fi preference for so long for two primary reasons:
1 The strong "gut" feeling involved in "injustices" like this; "strength" of Fi mistaken as possible "preference"
2 Rules like this appear to be an "external standard" or "group value" (Fe) that I was critical of (as in the E-FP's "immobilizing" or I-FP's "opposing" role). However, "group" values can be very relative, and often contradictory (which is picked out by Ti!) Society on one hand speaks out against discrimination; such as the reverse case; men being favored over women: or also, race; both of which were in the final stages of being overturned (at least officially) during my ealy childhood.
So-called "chivalry", basically stemmed from the old concept of "woman as weaker vessel", which was also the basis of anti-female discrimination. So it was sort of a counter balance: Man is dominant, but in return, he must treat the woman with additional repect and deference. But even this was being challenged as "chauvinistic" by some feminists.
So the discarding of all forms of discrimination seemed to be driven by an external value standard based on universal logic, while the old tradition seemed to be driven by an external logic system (organizing people by gender) based on supposed universal values. "Universals" are associated with introverted processes. In any case, external values will naturally take a back seat to internal logic in a young INTP. They will be more associated with negative "shoulds".
Overall, the process growing up was always logic judgment first; value (how important, etc) later. The first thing I was always complaining of was things like this being illogical, and asking "why?" Then, when the STJ adults would get frustrated and counter back with their hallmark cliché "that's just the way it is!"; THEN the strong feelings of personal devaluation (powerlessness) would come. A hero or parent use of Fi would probably just evaluate the situation and determine that it's not really important; not anything to get annoyed about; nothing is really lost, and (as I knew deep down inside), if there was a disaster, they would not take the time to separate out the girls and abandon the boys, but try to get everyone out as fast as they could. This was the aspect of Fi that I realized I was not in touch with, and hence I turned from the NFP suggestion others had given, back to my initial choice of INTP a few months ago. Fi is only good like that when all else fails, and it then transforms the negative thought pattern with an evaluation of importance.
Clearly, my initial evaluations was based all on logic. And the logic was based on an internal standard, which was often criticized heavily in an environment that believed that logic must be based on external standards to have any credibility (and only self-worth, ethics, importance, etc. should be based on an internal standard). This would then also increase my Te use in defense.
This also seems to match the out of place strengths picked up by the CP test: Ne 47.2 Ti 44.3 Si 37.8 Fi 30.9 Te 27.7 Fe 21.7 Se 19 Ni 10.6
I scored highest on Ne because I had marked a few questions "exactly me"; where I did not on Ti. This is because I am more aware of Ne use; partly because it is both extraverted; and a perception function (which tend to be easier to detect than the true nature of the standards we judge by).
Also, because Ti is probably simply not as strong as it might be in others who do score with it as the strongest. But otherwise, the internal logic standard clearly comes first, and type is all about the "preference".
Si falls in place
Fi and Te above Fe: because Fe does not even develop fully until midlife; but again, circumstances necessitated internal value standards and external logic becoming stronger; mostly in a defensive stance. As we see here and especially on INTPc, most INTPs have both Fi and Te as stronger than Fe. Still, Fe is what is aspired to; while Te and Fi are more negative (yet at least one INTP over there is claiming his Fi is good, Fe is negative only).
Se over Ni; again; (a few Ni questions marked "not me"); because an extraverted function being more noticeable than an introverted one; plus Se (external concrete perception; here and now focused) being easier to comprehend than Ni (internal abstract perception; future focus) anyway.