In reply to Tyler:
You'd be surprised how efficient it is - the rope is already stacked so it's better than reversing them on a cramped stance with two or three of you there. Once you have a system locked down you can be switched over, racked up and off, maybe snaffling a gel on the way in a couple of minutes. Put it this way, I'm a punter but I've never been benighted on an Alpine route, we did the Badile N.Ridge as a 3 in 3.5 hours, overtaking all the guided parties after we slept through our alarm at the bivvi. Abbing down took far longer!
Edit to add: each to their own, there is no best way. I buddy check all the time anyway, so untying doesn't feel like an issue. I'd rather do a mechanical easy task than flip the rope and deal with the faff when it does tangle - and it will at some point, no matter how neatly you try.
Post edited at 19:57