Sounds great to me. My last bike had Bridgestones and I only 6500 on the rear before I had to change it. I will be thrilled if I get 15 out of the rear.
I have 19,572 on the front and am changing the rear at 9,970. I have an 04 EGC and haul a lot on it during the summer, trips, rallys, road trip etc... I use Avon Venom X and would not use a Dunflop to save my life. Had personal probs. with them and I have sworn them off for life for my rides and vehicles. My 2 cents.
'05 EGC with 33,000+ miles, mostly 2-up riding. Original tire still on the front, changed the rear tire at a little over 17,000 (both have 1-2K left). I just bought a new set of 402s (wide white walls) from American Motorcycle Tire for around $270. delivered.
Gregm