I also just recently heard from one of the bike company salesman that they will begin putting 25's on their road bikes including race bikes in 2013's. Reason, smoother/faster and they way the corner turns. I didn't fully understand it, just passing on what I heard.

All my tires have been Specialized and we always use Mr. Tuffy's regardless. I change tires once a year or 3000 miles when the treading is worn.