My Garmin 745 is incredibly inaccurate over any distance when open water swimming. EG today I did, possibly a 600yd swim and its registered 933. Did a mile swim (1760 yards) and it registered over 2300 yards. This is shocking. Ive tried different satelites, just GPS and its still just at inaccurate. Any tips. I am a mostly a *** Stroke swimmer, but I do stop every so often to allow it to catch up, and if swimming long *** strokes, I tend to try and get the watch out the water.
I just dont know what to do, the online help was more than useless.