I'd say the intuitive hunches are right half the time. That's the thing, they're intuitive "hunches." I just see it as my duty to make sure I clarify which parts of the hunches are practical and which ones just do not coincide with reality. :P
Another place where my sister and I conflicted was how she dealt with other people at work. She told me she came to figure how to deal with each person, what to do to communicate effectively with them after finding out how they thought and acted. The way it came off to me was that she was saying, "this person is like this, so I have to do this, this person is like that, so I have to do that to do things with them." To me, it came off as detached and strategic for someone who was trying to approach someone more personally. It looked like an effective strategy disguised as genuine caring rather than trying to be sincerely empathetic and connecting with the person. Like, for instance, she told me how she had to talk to another ISTJ I worked with. She said, "For her, you have to relate everything back to her, that's the only way she'll understand it." That was cold to me, because it should have been about what she needed, rather than how you deal with her.