I find it almost impossible for one to be an English speaking American citizen to come accross Socionics and NOT come across the Enneagram at least once, if not several times, thus I feel as though my assumption that you will have at least an understanding of the primary aspectcs of the Enneagram is correct, justifying this topic.
Now, as for the Enneagram, I find it interseting how it functions so much on the pathology one's behaviour, and even more intersting to myself, is the method which one should use to "liberate" ones' self from the psyche, or as Guardjijeff(SP) or Ichazo(can't remember whom) so aptly stated, to free one's self from their "ego-fixations", and the method that one would use is to become more "present" in your daily lives, which, honestly, I think is the most sensible thing I've ever heard from a quasi-self-help system.