My interest in this was sparked by Clumsys thread "Instinctual stackings and relationships."
Over the last week I've become very interested in instinct stackings and I've realized they have a MAJOR effect on compatibilty. I've been thinking about my own experiences with other stackings & reading descriptions by enneagram writers, and various personality boards to hear other peoples opinions. I came to the conclusion that we're likely to be compatibile with those who share the same sexual variant position, especially those with the sp and so reversed:
If you're so/ sx, you would be most compatible with sp/ sx.
If you're so/ sp, you would be most compatible with sp/ so.
If you're sx/ so, you would be most compatible with sx/ sp.
IME It can even make us more compatible with certain sociotypes, just one example being my childhood best friend - an IEE 6w7 so/sx.. I'm sp/sx; of course we quarreled sometimes but the friendship was so strong - we were like sisters and we had great fun together for contrary type relations (almost as if we had a little drop of socionics duality in there).
Do you have any criticisms of this theory?.. doesn't it match your interactions? and, What are your real life experiences with those who I theorized to be your most compatible partners?