Apparently there has been some old discussion about this and it seems current software has been corrected to make it more accurate, Just one link http://www.gpspassion.com/forumsen/t...TOPIC_ID=10915 last post in 2012.
Apparently there has been some old discussion about this and it seems current software has been corrected to make it more accurate, Just one link http://www.gpspassion.com/forumsen/t...TOPIC_ID=10915 last post in 2012.