As part of a longer trip I'm thinking of going from Las Vegas to the next Supercharger in Beaver, UT. It's 230 miles but a significant elevation rise of almost 4000 feet. Even when driving slowly (60 mph) it's pushing the limits of an S85. Has anyone done that trip successfully? Any tips or comments? I'm really trying to avoid charging on the way but I think I might have to. I know there is a Supercharger planned in between, but it might not be open yet when I go on my trip in July.