[quote=charlescarlis]Ditto the above. The VMG reading isn't that accurate; maybe a "gee whiz" and MAYBE of some use if the wind is 100% rock steady (when is that?), so I end up just setting the watch to speed over ground and compass direction. All independent of the phone, with tracking and a decent battery life. Battery life goes down to about a day with super-accuracy (all 3 satellite positioning systems) turned on. With regular GPS, it lasts for 3 or 4 days. Still, the way point set-up and compass with speed is nice. Make sure you set your watch to lock out buttons, because I find the main sheet hitting them when it's blowing good.[/quote]
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