I've been using the 2012 Yksion tires with great satisfaction. I just got a new 2013 pair of Cosmic Carbone SLR wheels, and the new SSC version of the Yksions have not been as reliable. I had 3 pinch flats in the first two weeks (1 of which hit front and back together) and today had a puncture in the sidewall. By comparison, the new tires are more narrow and seem more thinly constructed. Not sure if this contributes to the pinch flats and/or puncture, but my riding buddies are starting to give me a hard time about flatting so much. I'd be interested to see if others are having the same experience. Otherwise, ride quality and grip are great. Durability for the new tires is TBD, the old ones last pretty well but not as long as Conti 4000s or Michelin ProRace.