Just something to think about. Have you ever noticed on all bikes to include the FJR, riders from N.Ca and the Pacific NW seem to get WAYYYYY more miles than anywhere else in the states????
That's because they are light in their loafers.
You have to keep in mind that a lot of those riders are going for distance - straight roads with little ultra twisty stuff. Others are wickedly smooth, which saves the rubber, too. Me, I'm a torque junky and live for corner exits.
Funny thing is that I would get 15,000 outta my GL1800's tires with similar riding as the FJR. True, different tires/compound, but dayem!