there are a lot of interesting things in these numbers. I did cut a corner through a parking lot but I can;t imagine it cutting half a mile off. I’m guessing the energy output is so different. Maybe that is because of the different in going there being slightly uphill vs home downhill. It still seems like a lot. I also don’t believe I hit 39.8 mph. I could but I think I’d need a damn big hill to do it.