Well, I have 2567 miles on my TKC and it is pretty worn. not too many miles left in her. I need to order something soon to keep on-hand. (Never had a tire with such a short life-span, even on my sport-tourer.) I might have another 1000 miles.
Although I love the TKC's road capabilities, but I do plan to try out the big-blocks. I'll be jumping on them very soon.