First time I did the DC route, I was lead on the rope. We were half hour above the massive RMI group. Weather turned to sh*t so my partner and I turned around. Looking down the mountain we could tell something was wrong with the RMI group. Their headlights all stopped and just kept looking around. We climbed down and past them all....they were not in the bootpath we were (the one that followed the wands). They then got back on track and followed us in. Back at Muir my partner and I learned the guide on the front of the rope "got off track" and feel into a creavase taking a few clients with him. Everyone was OK.
Second time I did the DC, we saw an RMI guide yelling at his rope team to hurry the fu*k up while pulling on the rope cuz the 3rd on rope was going slow......he was going slow cuz his gaiter was dragging behind his foot, he was tripping on it with each step. when he would try to fix it, the guide would yell and pull the rope again.
RMI has a bad rap cuz of what others have seen and reported. But they do get you up there......even if they have to pull you up.
My advise, be in great shape and hope your rope mates are also in great shape. And, keep your gaiters on!!