I'm going to wait until I learn more about Dunlops NEW Sportsmart tire which appears to be an improvement/upgrade to the Roadsmart which is already a great everyday tire. I sent Dunlop an email with specific questions on the Sportsmart. Will be interesting to see what Dunlop has to say!
According to what Dunlop has on their website the Sportsmart seems to be a cross between the Roadsmart and the Q2. The rule of thumb is a tourning tire such as the Roadsmart should never be run with less than 36psi cold due to the heavy carcass. Dunlop says the Sportsmart pressure can be lowered for track days with improved grip on the sides and improved mileage in the center. I'm a huge fan of "Made in USA" Dunlop and anxious to see what this new Sportsmart tire has to offer!