Original is tied with dark grey dubbing for the thorax; with the aftershaft fibers co-mingling with the grizzly hackle, it kinda morphed into an Adams softhackle. Weighted underbody optional.
Nice tie and interesting modification, Scott. Hellekson has this recipe, but no mention of the originator. Looks like an oldish pattern. Any idea of the history? Many of the old guard use to carry an innocuous gray nymph as their ace in the hole, and I’ve been meaning to add a few to my box to see if I can replicate those past successes, and this looks like a nice starting point.