WHAT KIND OF TECHNIQUES ARE YOU USING WITH YOUR BOX? Jimmy Maurer: “We’re opening it up so we get inside it. You open it up- ” Skyler Jahn: “- so two people can fit inside” JM: “One person pushes it down and behind them is on a sled and if they start to slow down, he’ll just bump into them and the box will go farther.” Phillipe Atallah, left with Jimmy Maurer (hidden) and Skyler Jahn, Water Tower Recreation Center slope. Watch video here.