Man, I could write a book.

My father is SLI, I married (and divorced) an SLI, and our son is SLI.

But to summarize, Supervision is not the best relationship. It can vary from genuinely helpful and constructive to intolerable, depending, I think, on the respective subtypes of the people involved. In my own case, my ex-wife and my subtypes (Te) were favorably matched, but it still wasn't enough in the long run.