I like the TKC but they do wear and they are not cheap. Currently I have a Pirelli Scorpion Rally rear tire.
The tread design was not like posted in the Super store picture of them.
The center lug is one wide bar lug. When new it did not have the lateral traction of a TKC, so I siped it, to look like the pic.
It is as good as a TKC and even though my siping is nearly gone, seems to work fine now. I do not keep track of mileage so can't comment on them.
I would buy another.
Some times I think tire threads are like oil threads. Maybe I am just not good enough to tell the difference between one semi knobby over the other. As important as tread design is, so is soft vs hard rubber and side wall strength. I don't read much comparison of that.