Joe Goodspeed knows a thing or three when it comes to pattern design for picking off large wary fish. This is by far one of the best stonefly nymphs out there, bar-none. The bundled and knotted flex floss legs in the back are a key trigger point when fish are keyed in on stonefly nymphs. A perfectly proportioned body which is flattened to represent the real thing surely doesnt go unnoticed by fish either.