Matthew, There are a lot of differences between the Evo Ascents and the Lightning Ascents. As far as traction: the Evo Ascent has the crampon under the front of the foot and rails down the sides. The Lightning Ascent has a crampon under the front of the foot, two side-to-side serrated pieces, and the entire frame is serrated. So no, the Lightning Ascent definitely does not have less traction. In terms of differences: The Evo Ascent has plastic decking. The Lightning Ascent has an aluminum frame and urethane decking. The Evo Ascent has sold-separately tails that can be added for more float. The Lightning Ascent doesn't, so make sure you get the appropriate length for the conditions you're going to be using it in. Basically, they're a completely different design. The only similarities that come to mind are the binding system and the fact that they both have a "televator" system for climbing. Hope that helps...if you need more info, feel free to ask about specifics. Check out the MSR website too (www.msrcorp.com). It has more detailed info and specs on the two models.