One more update on the Kenda Kross: I had them out on dirt for the first time today. Loose dirt and gravel fire road, some areas well-graded, others not, lots of steep climbs/fast downhills. Dropped pressure to 45 from 65. On pretty much everything they were quite good, with two exceptions: on very loose surfaces on steep uphill sections, there were occasional brief losses of traction, but nothing terrible; and coming down a fast corner I caught the edge of a deep dry water channel, which seemed to unsettle the bike more than I would have expected. The latter case may have simply been conditions, or it may have been the abrupt transition from the center tread to the large outer blocks - I'm not sure, but the tires might have contributed. Overall, though, they were every bit as good as the previous tires - considering their advantages on pavement, I expect to stick with them as long as that bike splits time between dirt and road.