Installed the update in my GPSMAP8612XSV tried it today . VERY DISAPPOINTED . Detail has gone from what I had before , tried several settings to get a better picture , nothing worked still and bad detail . Lost the blue screen which is my main screen that I use . Fished a lake that has lay down logs that I have fished before and could distinguish the individual limbs on the logs . Logs look like broken lines now . Have been running LS for many years . Before this update I had a ghost tree and a dead spot that I had learned to live with . Hopefully Garmin can fix this I'm going to call them tomorrow . I'm fishing in shallow water less than 15 ft.