A lot has to do with the temperature of the water you are going to be fishing on. Typically I troll for trout and salmon that seem to prefer 55 degree water. If you are fishing in a mountain lake where the thermocline is 25-30 feet or less, a hand operated downrigger is more than adequate. If you are fishing where you need to get to 40 feet or below, it will still work but your arms will get a workout.