For those of you who commute with studded tires, how do you find them to wear on concrete and asphalt/tarmac? I just put on a set of Wrathchilds, which are concave carbides, on my fat bike. The route I was riding was about 15% ice, 15% packed snow, and 70% clean. They worked excellent on the ice, but I'm curious as to how pavement riding will affect them in the long run. I got them for a steal, but at $350-400 a set new, I'd hope they would last a while.