It is argued that the Cruncher is one of the most productive nymph patterns of all time. It is such a great imitator of nymphs for Rainbow and Brown Trout. They share some similarity to Spiders with the hot spot behind the hackles but that's where the similarity ends. The best time to fish this pattern is when a buzzer hatch is on. Ideally fished on the top dropper of a leader where the hackles create a better disturbance on the water. If paired with a Buzzer or Diawl Bach, you'll see some great results!