Some observations thus far in tying less than stellar imitations of Czech Nymphs: I hope to refine the following areas~inner ribbing should have more flash, so wider ribbing and the outer ribbing would be wound in between the inner wraps; the abdomen must be much less fuzzy and either be fine dubbing, some form of thin yarn like material but whatever is used less straggly or I might as well be tying scuds. I am mindful of gills on Callibaetis and other mayfly nymphs, but again I am trying to copy an established pattern as opposed to various insects (mayfly/caddis/scuds/sowbugs). My shellback or foil is drawn up so tight as to be almost invisible along the top; I am satisfied with the thorax area but have not perfected the ‘hot spot’ just behind the thorax wraps. I seem to wrap over the hot spot and deminish its’ impact.