I added another statistic to mine . Cost of fuel per fish kept . Sold my 1222 unit and went to red ear fishing except the spawn . Driving 130 miles per trip to catch few keepers got old quick . Not sure why but pulling cranks , power trolling and long lining started declining for me as well . At the present we care for aging in laws (dementia ). Hope to return to that area before I am to old to fish .