I went from no tech help until a few years ago when I got a Golf Buddy that I keep in my pocket and am now ready to go to a laser for increased accuracy. I have a knack for losing headcovers and umbrellas and have always thought the rangefinder would suffer the same fate. I know guys that will have a watch in addition to the rangefinder for blind shots which I guess if you don’t want to leave anything to chance would give you the greatest advantage.