ESC has come up with a way to possibly solve the J/P problem when converting between MBTI and Socionics.
Ah, it's not that dynamic irrationals seem rational, it's the seemingly contradictory behavior of dynamic introverted irrationals seem rational when they are extroverting. That is, when they're interacting with others or their environment, they do so using Je and thus they appear to be rational on the surface but are deeply irrational. That would explain why ILI often type as MBTI: INTJ and LII often type as MBTI: INTP. Makes sense, right?ESC, dynamic irrationals DON'T seem rational. And neither do static rationals seem irrational. If anything, subtype might slightly affect it, but otherwise it simply doesn't work. Even author of MBTI realized it at some point. I don't know why are you insisting on applying this main MBTI flaw to socionics, but at least call it what it is. That's exactly how MBTI concept of P/J came to be, and in theory it's all OK. Except it doesn't work in reality. Sorry.