FWIW, ready to replace a rear BT023 after about exactly 9k miles. Would have gotten somewhat better life if I had better roads here. Couple thousand miles of full-on superslab, and a lot of city riding as well in that duration.
Nice round profile, good wet performance right up to the end, buying another one. For $130 from Dennis Kirk, it seems an obvious choice.
Maybe I'll go easier on the throttle this time around and shoot for 10k miles, but that seems highly unlikely.