> Have you done this section in the winter? Do you by chance have any videos of it? I've read some people rope-up but am trying to gauge if it's necessary. My partner rock climbs but has little experience mountaineering. I'm more concerned about the descent.

I've gone up the route in snow in June, using crampons and ice axe. Sorry, no video. I took some beginners up, but not down (though it wasn't the wisest thing I've done.) Conditions were ideal: A little fresh snow on top of a consolidated snow base provided solid footing.

The commercial guides always rope up with their clients, and some private groups do as well, though many don't. You will definitely need ice axe and crampons. You should know ice-axe self-arrest technique if you aren't roping up.

Be very careful, especially if it is icy. A slip without the proper gear could be you last.

Here are two videos to watch:
    How to ice-axe self arrest, from the British Mountaineering Council
    and this one: Ice Axe Technique from WhittakerMtneering