In reply to AlanLittle:
> ...am I the only person that *hates* being belayed as a second in guide mode? The jerky tugging, the faff if you want to step down and try a move a different way, the near certainty of being dropped to your doom if you need to be lowered for some reason ...I can see the arguments for it for saving on belayer effort on big alpine routes that it was designed for, but I dislike the idea that seems to be taking over that it's the standard approach in any other circumstances.
Boy am I every with you on this one! A few people have mentioned that it is possible to give a decent belay using a guide mode, and this is true---I've done it lots of times, but I still find it extremely rare that a guide-mode belayer gives a pleasant belay. If you are going to give a decent guide-mode belay, it takes as much and perhaps more attention as a harness-level belay, and, let's face it, guide mode is mostly about not paying attention so you can do other things. So guide mode has few advantages if you are going to pay attention, and retains significant disadvantages, not only in lowering, but also in the general effort level needed to take in the ropes. I might add that I can also manage two followers better with a harness-level belay than with a guide-mode belay so there is no intrinsic advantage there either.
I keep saying "harness-level" here because I use a snug anchor strand and clip the belay device to the rope loop. This is just as much a direct belay off the anchor as the guide-mode belay, the only difference being that the harness-level configuration adds a shock-absorbing bit of dynamic climbing rope as a connector.
So, having heaped scorn on the method, why do I still use it? Well I don't all that much, but on small partially or fully hanging stances, I find the ability to go momentarily hands-free to cleanly stack the rope over the anchor strand makes a considerable difference in keeping tangles at bay for the leader of the next pitch. And when standing, using a harness-level belay obliges me to bend over quite a lot, and my back isn't always happy about that. The guide-mode belay is in some cases a less stressful alternative.