Might try giving that a go. Never really thought of it before, was just made to think of it in this photo. Obviously as it's a big event and you've got very little wiggle room, getting it right within seconds is always something I'm trying to improve on, especially with gig photography.
While I'm mulling over ways of doing things, how do you have your 5dmk3 set up? Have you changed buttons, programmed different settings to quickly swap about? Personally I haven't found any need to do anything other than quickly switch over settings for metering for example, or the iso. I suppose if you were using the different programming options you could set a group of settings to rapidly switch between shutter/iso/Fstop for an immediate change of style.
The way I'm using the camera is pretty basic really, but that being said it's only that way as it suits what I'm doing currently. I just don't want to lock myself into a single way of thinking or I'll never really progress, or at least in the sense of camera use