What distinguishes singlets with multiple kintypes from being a median system?

Kintypes aren’t separate or semi-separate people.

While someone with multiple kintypes may have shifts where they feel closer to that kintype whether physically or mentally, they still experience a full continuity of self. All of their kintypes are the same person, they’re not turning into someone different, they’re experiencing one part of themselves more heavily (like being in a creative mood, or having a craving for chocolate cake).

If you experience a ‘kintype’ as a separate or semi-separate person or persona from yourself, then that’s not actually a kintype its a headmate or facet of some type.