I will admit I walked some of it, the loop back was all up hill (a little under 1000 ft of elevation..I think) All I know is I didn’t expect all the hills when I mapped it..I was getting my butt kicked by them. I pushed up each hill til I felt like I was wearing concrete shoes. Them walked a few yards, then started to run at the top of the hill. So I gotta get credit there somewhere. I think I swallowed the bug..cuz by the time I tried to spit it out..nothing. Oh well..probably happen many more times 🙂