Dave,
Here's a recent thread that touched on that topic. The crib notes version is the Garmin itself, GTC, SportsTracks, and MB can differ by 0.01 to 0.03 (in my experience) depending on distance, satellite reception, hills, and other factors. 0.01 is 52'. Not enough to sweat over, IMO.
To me you just need to pick one and go with it. |