TKC80 rear: 16000km
TKC80 front: 23000km
Don't try this at home kids...
I've replaced the rear with a Michelin T-63 that looks promising. Due to a port strike I couldn't get the matching T-63 front, so I'm making-do with a Kenda K270, quite possibly the ugliest tire in the history of motorcycling. But it's black and it's round and will be OK until I can order the matching front.
I bought them from dualsportplus.com, based out of Ontario. Check em out, I'm pretty happy with their service.
In other news, I've got a new toy to play with, though it's not mine. A reader of my ride report may have some work for me shooting video for a TV program, and he's loaned a bit of equipment for me to try...