I run TCKs. Great for most things - even snow ;-)
Get a bit scary at 100mph (160kph) with boxes on though. They will cruise at 80-85 easily, above that I have to seriously loosten my grip on the bars to stop it weaving.
Mine have lasted 4500 miles (7200kms) so far (inc. 1000 on my previous crap GSA).
Getting close to changing the rear, perhaps another 500 - 1000 miles yet. Most of my riding has been in bad weather so not hammered much.
The problem you have is that a good mud tyre is never going to be good at 160kph. You just cannot have both. Having said that, I dont suppose you get much snow either !