Opposing Enneagram Types - are there any?

[717495]

As in stating, via evidence from descriptions, "being a 5 by default makes one bad at being an 8" or "gives one trouble with 'enneatype 8' pursuits" or "realms of performance," for example.

and can this be shown with Socionics types and their correlations to enneagram?

[The Exception]

As in stating, via evidence from descriptions, "being a 5 by default makes one bad at being an 8" or "gives one trouble with 'enneatype 8' pursuits" or "realms of performance," for example.

and can this be shown with Socionics types and their correlations to enneagram?

Enneagram is not a dichotomy oriented theory, so I don't see any two enneagram types as being complete opposites of one another. Some types can seem very different from each other (e.g. 5 and 8) but I wouldn't say they are opposites.

[Azeroffs]

Definitely not. People show aspects of all Etypes to some degree. Besides, integrating 5s start looking like 8s.