To the guy who asked about Everwears: I've heard stories about them squaring out, and such so I'd take that with trepidation. I've run mine for about a year now, still running strong, and I do skid a lot. Been riding in the rain a lot, and bad showers, and I still feel like I have a good amount of grip for turns and such.

My friend managed to skid through his Randoneer in about 2 weeks, course he's riding clipless and skids... a lot. My roomate doesn't skid often, but rides quite a bit and his tire is still going strong