I wouldn't know how to measure how functional my functions might be. It's a tiny bit bizarre even thinking what such a measure might be. But as for my form of expression, it would seem to be less "Te" than some of the gloomier INTJs.
It would seem I make a public virtue out of being somewhat cryptic. Surprisingly perhaps, I think of this as being clear and rational. Or more exactly, as creative of clarity and rationality. The process of blurting out my various imagistic concerns tends to lend structure to them and make them more real. They are tested and forged. That other people have trouble with them is an issue, but perhaps not a big one. Ultimately, ideally--and granted, this is only an ideal, but--ideally, if there's a person you defend your ideas against, it's yourself.
You are obliged to know where your thinking is subjective, where it is contingent, where it is weak. The idiosyncrasy you bring to speculation is vital if you are to speculate at all, but the substance of your speculation must eventually find some demonstration. So, y'know, blurt it out, see what happens. Personally I think of that as a Te/Se process but who knows, people are idiots, it could be anything.