I agree id rather run 318's through to knock it out in a little over an hour mindset but it can be done with a few low light folks. It does take longer but it can be done a lot faster than 4 hours. Usually low light is associated with lack of skill but sometimes high skill makes up for a low 300. Several weeks back I helped about four low levels complete a few legs and took about 1 hour to clear Warpriest challenge. The reason being was the lack of knowledge not skill. So it goes both ways.