In my quest for the perfect plow tire (for my steep hill application in which I am most concerned about controlling downhill speed), I have been looking at all the various brands offered in North America. I have narrowed the field to a handful of tires, but I am having trouble analyzing the new Nokian Hakkapeliitta LT. This tire, according to the dealer, is much better than the Nokian Hakkapellitta 10 LT (I think he said it is replacing it, but I am not sure). The new one has a directional tread. On the left hand side of the photo you hopefully can see the arrows. What is optimized....the acceleration or the breaking? At slow speed, I think breaking would cause the snow to load up toward the center of the tire. Accelerating would seem to force the snow to the outer walls (i.e., self cleaning). I would have thought the breaking is optimized on a commercial tire. But when I look at the tread design, it looks like acceleration is. (Or maybe I just don’t understand the theory). Has anyone used these tires or can you comment on the theory of directional treads, and the pros and cons?.