Lake Bait (Red Barbs tied in on sides for visibility)
Lake Bait (Red Barbs tied in on sides for visibility)
Lake Bait Soft Hackle (FlyfishUSA)  
Lake Bait Soft Hackle (FlyfishUSA)   
I was recently fishing an Oregon lake and met a lady flyfisher that loaned my son, Tony, a fly because he had been generous with his ‘secret info’ The fly was spectacularly productive. The fly we had and eventually lost, had the elements of a Carey Special with a fluff tail of chickaboo or clump of aftershaft plumes. The wrapped pheasant rump feathers is the same and only the addition of a clump of red barbs on top of the thorax. The red barbs glowed when the fly was wet. I wondered if the red fibers might be better positioned on the sides as opposed to only the top. I am going to also experiment with hot orange barbs and hot green barbs too. Check out the FlyfishUSA site and you will notice this fly is like an afterthought with no origin info for the fly, just the pic. The fly is showcased with Carey Special variations. This fly, I must reiterate, was exceptional. It was better than any Carey I have fished. I believe the Chickabou tail and particularly the red or orange hackle barbs give additional life and exciter qualities to the pattern. The fly was very productive while Dragon flies were heavily present.       
Lake Bait (Wet side view of red barbs top/bottom visibility)
Lake Bait (Wet side view of red barbs top/lateral visibility)
Lake Bait (Wet rear view of red barbs visibility top/bottom)
Lake Bait (Wet rear view of red barbs visibility top/lateral)

https://swittersb.wordpress.com/2008/08/03/lake-bait-stillwater-nymph-red-or-green-barbs/

The above link is a post re green or red lateral barbs. A few photos to compare.