I did this a while back. there's a link to a converter for changing Lowrance way points for use on HB but humminbird uses north long and w latt. or is it n and e? cant remember anyway all I did was create a new waypoint in humminbird pc and enter the lowrance waypoint coordinates into the new waypoint fields and enter a w instead of an e and it worked and put me right on my old lowrance waypoint spots. did 12 waypoints and all are dead on. Am I missing something here? these all are brush piles of mine and they were all on an old lowrance that came on my boat.