Ice was an issue for part of the route that I choose to climb up to the plateau, but may not be anymore as the temps seem to be heading up.
If you stop in to say hi to Doug, ask him for his recommendation. He looked at my track and stated that there is a much easier way to get up, but I don't recall the details. (I purposely chose the route I started up because I hadn't done it before. He may have been talking about the standard route up for Irvine, but I'm not sure. I did look over there and it was mostly clear of snow.)