The trigger baetis nymph is one of our personal favorites. It was originally designed by taking countless hours on the stream trying to solve fishing situations. The fish were very picky and were keyed on emerging baetis flies. The trigger baetis was finally created from taking many trips back and forth from the fly bench to the river. We have fished the trigger baetis during the Baetiss hatch for many years. This fly has become one of our all time favorite flies in a wide variety of fishing situations.