I don't know... when I first read about the Reinin dichotomies I thought they're really great. But nowadays I'm doubting their merit for typing purposes. It's quite likely that you concentrate too much on a single dichotomy and less on the overall picture, imho. Subtypes also have such a deceiving character. Many people seem to know their subtypes before they know their basic type and explain their deviations from that with subtype traits.