I know we've found some of these "elite controllers" in the form of children; families who adopted kids in the late 80s and early 90s. The drugs were so hard on kids that many would get sick immediately. So you you give the kids drugs so they can live until 15 or don't and they live to be 8 (but happier for a bit).
Some parents chose to take their kids off the drugs..and some of those kids are in their late 20s today! But many of them aren't.
My question: how do you find these cases in adults? You can't ethically give someone a placebo for 5 years! Are these people who the point of infection can be narrowed down to an instance and who discover they have HIV 6+ years after the fact?