I got 19,000 miles out of Roadsmart 3s on the 650 (although they stood up by themselves when removed - I was doing a lot of motorway riding at the time so being squared off wasn't too much of an issue).
I've never had an issue with any tyres for the riding I do, though would happily refit Roadsmarts back on. (currently have PR5s but only because they were cheaper than the Roadsmarts at the time)