From inside, the driver reported no perceptible difference between the two sets of tires while rockcrawling. Watching from the outside, however, told a different story. Although the performance between the two was very close and both tires were ultimately plenty capable of getting the truck to the top of the trail, the Mud-Terrains appeared to have an easier time doing it. For instance, the M/Ts have the advantage of more aggressive side lugs, which in certain situations were able to grab onto a crevice or ledge to help pull the whole tire up. Also, when descending an obstacle, it appeared that the lugs helped hold onto the side of a rock and keep the truck stationary when needed.