My go to fly the past two years. When all else fails no matter what the conditions this fly seemed to produce the most for me.
Basic Clouser pattern with a few tweeks. Instead of a plain body, I wrap the first layer of white bucktail with pearl flash (angel hair or other) from the bend to the eyes. This gives a nice body appearance and a good look in the water. The other thing I like is to keep the olive fairly prominent towards the head with a few wisps near the tail. Just a personal preference.