The loops theories are a little weird to me; I think when someone is say, SiTeFi and is over-relying on introverted functions, it's more likely for it to be overly Si than to be SiFi. The reason is either you've got a developed auxiliary or you are over-relying on the dominant. If you develop F-aux, that will tend to not allow strong T overriding of F. If you develop only dom strongly, you're more on dom-overdrive than on this weird dom-tertiary overdrive.
It seems to me that if you really actually are NiFe>TiSe, it's a bit strange to enter into an overly NiTi phase. People who really seem to have NiTi>>the rest might be NTs!
My very first typing ever back when I was new to stuff was something like an NiTi type and I eventually decided on a T type.
(It's especially worth noting that people like Jung were happy saying NTs can be Ni+Ti -- now a 8 function-attitude model version of that is just a more complicated take, but the point is there's just no reason to run from those two FA to an NF type.)