Haven't read the rest of this thread, but I was just talking to my INFJ boss about this sort of thing, in relation to learning styles. One of the things that I'm very good at doing, that she can't do, is envisioning a broader whole as made up of a methodical, logical list. You can give me an extremely complicated task and I won't get lost in it, because it'll be like putting a puzzle together; the picture will become clearer as I go, and it'll become easier and easier to complete. (This is exactly the reason why I'm good at complicated knitting patterns that require charts, e.g. cables and colorwork.)
I figure this has something to do with Si/Ne, so it would make sense for it to be a common SJ talent.