Rode it last Sunday for a stretch. Made it to just north of Breitenbush before the snow/slush/ice made my bike tired and nap.
The snow was super wet and slushy. I was riding in some trucks tire tracks. Patches of asphalt were visible. Maybe a smaller bike or more aggressive tyres would have been easier. I was with a friend on a v-strom and he decided he was done, so we turned tail and rode back to Estacada for beer.
On a side note, there are some small rockfalls and at least one large boulder that is partially blocking the northbound lane after the turnoff for Bagby.