Like you I can't seem to find the actual article in my limited searching. I have found someone who claims it is legitimate. In their wording the reader gets the impression this person read the article themselves. According to this individual the bolts were all pre torqued and somehow electrically rusted for uniformity. Not much of an engineer myself, so I cannot dispel the possibility. I cannot confirm a method of achieving this either. The above post cites the test as "subjective" which leads me to assume an uncontrollable margin of error. Either way I'm gonna try forcing some down the gullet of that crusty hunk down by the barn to see what comes. I figure it can't hurt.