The McPhail CDC Yellow Quill will work miracles down at the stream and river. This barbless fly pattern with its yellow body and grey wings will provoke the large fish to striking.
Some anglers like to apply flotant to the wings of the McPhail CDC Yellow Quill to help it keep afloat. I normally fish this fly as an emerger and it works great. The head without a bead keeps it from sinking.
Strip line slowly towards yourself in 6-inch increments, providing subtle action, this will mimic the naturals. This little bit of action will get the fish’s attention and a strike will be likely to occur.