The Bitterroot is bumping these days, but that hasn’t slowed the gray drake hatch in the least. In slack water, a good cripple drake pattern can be killer, and this friday tutorial is all that and then some. A killer pattern by a killer fly tier, tied by a killer tier. Not much better. I change this pattern in color for a great imitation of all the mayflies we encounter on the rivers of western Montana. For the big drakes of the lower Clark Fork and the Bitterroot, I use an olive grey UV dubbing for the thorax, though a flashy purple version in low light has also been a great option. Check out this tutorial and tinker with the colors a bit and start finding the fish.