Tying Johnny's heading to hatch Iso Nymph(video)

In this video I tie my hth iso. I call it the heading to hatch iso because of the black wing case. If you ever sample nymphs from a stream prior to an emergence, you will find with dark wing cases. Many times if you fish a nymph with a dark wing case you will get quite a few more takes.
   You can sub out the wing case material(turkey) for a synthetic material like silly skin or scud back. I like to use the turkey because I have a lot of it. Don't be fooled by the length of the video, I do a lot of explaining for the various techniques thought the fly. Once you have it, they are a rather quick tie that's well worth it. The stripe is optional, but I strongly recommend using a grey stripe. A white stripe while disappear when wet. The technique for the legs one the fly is a great one to learn. I use it on a lot of my nymph patterns.
   Fish this fly in tail outs and riffles and good moving runs. Isonychia nymphs are excellent swimmers, they are fast. Be sure to apply action to fly via rod twitches, swinging, and stripping. You can fish them dead drift and still pick up fish, after all the nymphs have to stop swimming at some point. Enjoy.

 Materials 

Hook-daiichi-2220-#12-#16. I like #14 best 

Thread-brown 16/0 or 8/0 

Tail- brown mini marabou or chickabou. 

Abdomen- brown bou 

Rib-black utc wire brassie 

Stripe-light grey life flex. 

Wing case- black section of turkey tail tip

 Legs- dark partridge Thorax- peacock herl.