Byron,
Gary's directions in Caddisflies has the tier tying down two strands of antron, one on top of the shank and one on the bottom of the shank. I never did understand this advice as it has the tier struggle to negotiate the bend and sharp hook point&barb.
I strongly suggest tying in the bunches on either side of the shank instead, as indeed Matt Grobert in the Vimeo video demonstrates
Cheers,
Hans W