I find corners to be my issue. I haven't timed splits but they feel like they take longer than edges. I certainly pause a lot more coming up with images. I'd like to do full audio but it's probably a step too far.It is now, yes. But 5 years ago it was more common to do the safe memo on edges, because it seemed like edges were too much for audio memory. Then that was proven wrong, and everyone switched.
I've fully made the switch now, but I'm still not quite as fast as I once was the old way. I assume I just need some intensive practice to get there; right now I still tend to take far too long constructing the audio memo.