They don't dig in like the MT's that i have on my Comanche. You're right, we don't get much snow around the Puget Sound, but it does happen. In fact, the beginning of Jan. we all drove around in over a foot of snow that lasted a few weeks. The NW is also known for many Mountains and high elevations, huge amount of precipitation... so we might know a bit about extreme weather conditions. I can't speak for Kansas... You're on your own.