I've just replaced my PR3s with the latest and greatest.
I got 24,500 kays from the rear and 27,000 from the front, so I'm hooked.
The pair cost $460 fitted, up from $440 for the PR3s.
With all the palaver about wear on the RH side because of road camber, my front hit the wear bars on the left first. I do wonder whether the fact my ST13 wants to turn right if you take your hands off the bars means there's always a slight left turn happening at the road.
Whatever, I'm happy with every aspect of the Michelins.