More thoughts about the RoadSmarts for anyone that cares...
As mentioned, only the rear is dual compound. I pushed the front to 6400 miles, but it started handling poorly at least a thousand before that. When I say "poorly", I mean that the front end got heavy and I had to strong-arm it in the curves. The curves are my favorite place to be, but not with a bike that doesn't want to turn. I replaced the front RoadSmart with a decent used BT020 and the bike handles fine again.
The smarts handled very fine up to that point. I had no complaints.
I would much prefer that the front and rear had a matched tread life. Even if they are within a thousand miles of each other, I'd still replace them as a set. In this case, the rear will outlast the front by at least 2500 miles, probably more. There's too much tread on the rear to take it off already.
I've already purchased a set of PR2's, which have dual compound front and rear. If they don't wear more consistently than the Dunlops, then I'll try something else next time. There are lot's of tires out there to try.