The Castle Ravine trail is a nasty trail which is difficult in the summer on dry rocks. I can't imagine being on it under current conditions without ice climbing gear. The weather over the weekend was pretty nice all in all, but earlier in the week it was pretty nasty.
I prefer 8 point crampons, four front points and four rear points with a flexible band connecting the two. These allow you walk on rocks easier without tripping up. But since my plastic double boots fell apart, I can't use them anymore.