Just thinking out loud here: you can therefore achieve the same results by trimming a shallow tapered wedge off the tips of the outside paddles from zero at the clips to 3/4" +- at the edge and not have any track integrity issues. Seems like a better alternative to me. I think the thicker shorter paddle at the edge would cut into and grab better in the hard packed snow when you really need it to and be less likely to wash out like a flexible full paddle would likely do. In theory you really shouldn't lose any traction in loose snow and on hard pack riding flat you really shouldn't need the full 15-16 inches touching.