While using the vertical speed data field for running I regularly see values of -0.3 / 0.3 which I assume is probably km/h, as I have my speed and pace units set to metric, however, I'm unsure and would like to change them to a more meaningful set of units like m/h. Is this possible? A rounding error of +/- 50m/h makes a huge difference, and that's assuming that it's rounding to the nearest value and not rounding down.