Go with this for a moment: Boardercross, or Snowboard cross as it’s also known, is a cousin of cross-country skiing. Both are wintertime endeavors. Both involve sliding on frozen water. Let’s just say skinny skis and snowboards are within the Punnett square of crossing winter with sport. That brings us to another commonality; good glide is better. Manufacturers of nordic skis and snowboards most often use UHMW, or Ultra High Molecular Weight Polyethylene, for its...