So I have buddy who bought a 600 Pro for winter access to his cabin which is located two miles down an unplowed dirt road. He's not an experienced off-trail rider, so he's not familiar with the fragile tunnel on the Pro's. Either way, he wanted a way to get his wife back with him to the cabin. The local Polaris dealer sold and installed the two-up contraption pictured below (there is a seat that attaches to the frame). I told him he needs to be REALLY careful with a second rider on the sled. I personally would't take the chance. What do you guys think?