Any chance you know what has been done to Chris’s personal boost sled?That's a tough question. Boost will obviously make it easier to get up stuff than the 9R. 14 mph track speed difference is what Chris says they are making and that's huge. That being said, I still love a good challenge so I'm sticking it out with the 9R for the whole trip. They offered me to switch to a Boost but I passed.
It runs super clean.