I decided to try an adventure trip. Given that there is an unplowed bike trail connection that cuts at least a mile off my commute, plus providing an overpass to bypass a very long traffic light, I decided to see whether my studs were up to the job.
It was quite fun, once I decided that nothing was going to fall off. The whole surface was a moonscape of big ice blocks -- whap, whap, whap. I now understand why some mountain bikes have suspensions.
It was a cool challange and cut about ten minutes off my trip -- fun with a purpose.
Paul