There seems to be more contradiction here than in any other typology I've seen (at least in a long time), even more so than the various schools of thought in Socionics. There's no ONE authority on it, so there's no official right answer. It feels like people are using the same words to speak different languages, resulting in a lot of problems communicating.
It would be nice to respond by just ignoring it, but it seems like one of the most crucial areas of compatibility. It's on par with PY and of greater importance than Socionics.
I don't have any suggestions on how to resolve this. I guess I'm just bitching.