Using two different color (red & blue) zip lines kept some of the confusion down.. "Ready for 2 on red", "Ready for 4 on blue". The set up is a tad odd in that there is more down time for the ground guys. I usually try to keep them hopping more. With 3 main tops, this was better than all the redirects I would have had to do on each set. Plus the positioning for cutting was easier to achieve. It was tight up there... Once the leaders spread out some, I pretty much went to one line for the rest of climb up and then dropped back down for the next lead. Still used different vectors though.