09-10-2009, 06:07 AM
I suspect that the "elevation gain" readings I'm getting from my 310XT are pretty inaccurate. For a while now I've been getting high readings for some runs which seemed quite flat. "Okay," I thought, maybe I'm just not as good as gauging these things as I thought. But now that I've settled into a few regular routes, I've also noticed that I get noticably different readings for the same runs. For instance, my (9/6) run yielded a 1,401 ft elevation gain, while my (9/9) run yielded a 2,022 elevation gain--this despite the fact that my (9/6) route is exactly like my (9/9) run, with an additional 1.5 miles tacked onto the end. Am I missing something here?