i'm used to all terrains. pirelli scorpion a/t on my 94 c1500. great on the road, and excellent in minor offroad stuff. sand, and shallow mud and snow. but, i haven't tested them in the same level stuff i drive the blazer. the k5 will need new tires soon, and i'm not sure if i should go with some 33x12.5 scorpions or the, more aggressive, slightly cheaper dunlop mud rover(also 33x12.5). i mostly want to maintain and improve the truck's ability in mud. but, i do not want to compromise ability on sand or slickrock. i've heard mud tires will just dig a hole in sand and that the large voids lower actual contact area on rock, hurting traction. opinions, experiences, thoughts?