I also fish on various boats and the common theme is they do not know how to use their electronics properly.One does not know how to access numbers like lat and long to find the numbers others are fishing.The other guy has no trails or icons we can use.The other guy wants to have sonar on fish ID and all we see are pictures of fish.Cant distinguish between bait or fish.I use my 20yr old basic hand held gps and do what we need to do.