How is MBTI J/P different from Socionics j/p

[consentingadult]

Whatever the history of it was, the official stance by the makers of MBTI is that J/P is not the same as conscientiousness, and that it has to do with personal preferences, not with whether one is late, early, or organized. In theory, J/P in MBTI is supposed to be indicated by whether one prefers to structure one's existence even in situations where it's not required.

Anyhow, Socionics has some somewhat similar, though competing, notions, such as rationality vs. irrationality, resolute vs. reasonable, etc. None of these are about conscientiousness though.

Of course they deny it, they want their theory to be in sync with Jung, but they are wrong, dead wrong. Not just Meyers, but the offspring even more. e.g. Paul Tieger & Barbara Barron. Their version of J/P is even more about conscientiousness then Meyer's.