I also have Lowrance Create maps and they are off at several locations. I have watched it make trails along side of the map roads and sometimes they can be more than a 100 yards off. When I travel this route at another time, the trail is marking another one on top of the first one and is very good at duplicating its co-ordinates but the map program is off and still shows me driving along side of the road instead of on it. Most of the map roads and places are right on but some of the map is way off.