Originally Posted by
bikerjp
I don't use elevation correction. It always seem to overreport the elevation compared to the Garmin. The Garmin has a barometric which is supposed to be fairly accurate. I guess I'm not too concerned about the most precise data just consistency for comparisons.
In this case it's not the actual elevation I'm interested in but the effect wind seems to have on the data.
Wind affects the pressure reading, and therefore the elevation change data. I've found the internal altitude measurements of the Garmins to be (a) highly variable from unit to unit and (b) typically highly optimistic.