Dunno if I spelled that right, but I spend a lot of time in the mountains of Utah and California, and I need a good snow tire. I was going to get all terrains, but I have never ran spikeable tires before. I have 2002 qc 4x4 with stock 20's. I would consider m/t but I think those might slide more in the snow. I was looking for sizes 275 60 20 or 305 55 20, but I am not sure if the 305's are worth the extra money, and I might want to have a skinnier tire. What do you guys think?