When I saw the demo XR in my Australian dealership it had Bridgestones on, however when my bike arrived a couple of weeks ago it was fitted with the Rossos.
The Bridgestones on my last bike (Kawasaki Ninja 1000) squared off after 6000Kms so we'll see how these do. I'm a big fan of the Pirelli Angel GTs for touring and got 12000Kms out of a set on my last bike before they square off a tiny bit.