Sadly a lot of folks would take that to mean that it should be a little tight. And as we know if it's only a little tight in some spots it can end up a lot tight in others. It's why I sort of follow FastJake's idea but in my own words when I typically say something like "the right tension is just barely no tension at all. And test this in a few spots because the sprockets are seldom totally round. Adjust so it doesn't get actually tight at any point.".