It snowed over the weekend. The ground was quite warm, so the first bit of snow melted when it hit the ground. Then it cooled off and made a nice sheet of ice. Then more snow fell, but just enough to cover the ice and not stick to that layer. Then people drove on this combination and spun their tires at every opportunity, creating black ice on almost half of my commute. Last night I put the skinny tires away and brought out the Schwalbe 304 Ice Spikers. I would have commuted way more in past years if I would have had a set of these. Not a hint of slippage at any time, whether braking, climbing or cruising. Delightful. They also handle well in slush, not that there was very much. They don't exactly corner well on pavement, but that's to be expected.