Robert
I was up there last weekend, and it is very dangerous as I fell in with crampons on, those gapers actually suck you in:
Anyway, no need to rope up unless you are in a dicer section, but we got to where we needed to go w/o roping up.
As we found out the hard way, be careful of placing the screws for anchors on the sunnyside as ours melted out very quickly. No way you can get a picket in either. I'm sure you know this, but even with snow and packs on top of the screws to slow down the heating process, they still pulled right out with little effort.