I tried to download a video tutorial from SplashesWithFishes’ Blog re Sow Bug pattern, but it wouldn’t load for me/you. The pattern incorporates twist dubbing onto V-Rib then wrapping the rib onto the shank. The dubbing is brushed out then trimmed to maintain a fuzzy enticement protruding between the wraps of V-Rib. Here is the link: Fuzzling Sow Bug.
Pay particular attention to the comments here from Steve at Mtn. River Journal re followup info.