So far, I've no problem for mine with the tensioner on
, but seems like sooooo many pilots compliant about theirs. I have limited experience about helis, but fully agreed to what Dumb Thumbs
had posted "the 250 don't need one, the 500 don't need one... Why does the 450 need one?" , I still feel running one with the tensioner can avoid belt jump or tighten up the tension. Is that true ?