That method offers the trout a side view of the fly and they really pound it. There's nothing like a tight-line take. Which Way but Loose. Activities engaged in when the Filo-Beto was named were not divulged. Behind that, trail a smaller nymph off an eight-inch section of 4X tippet tied to the curve of the larger hook.
Most anglers fish that setup under a strike indicator.
Vary depths by moving your indicator up or down the leader until you locate where fish are holding. Whatever setup you choose to fish, don't worry about Big Wood trout not being on the bite. They always eat, just as trout do wherever they are found. According to Huber, everyday is a good day to fish the Wood. I've caught fish when the temperature was 12 below.