One thing always leads to another. This great Baetis nymph owes a big thank you to Durango’s WD40 by MarkEngler. Noted Guide, Boomer Stout altered and tinkered and fished with the same design theme for thefamous Baetis hatches of the legendary Green River. The satisfied smiles of his clients were frequently theresult of Boomer’s years of success with the resulting WD50.

He added an emerging wing case of the sameduck flank (Wigeon, etc) used in the tail. For attraction he added the flashback over a chunky, dark thorax. Thisfly just seemed to trigger more strikes. Since Baetis are found nationwide, the olive and the gray are poised forsuccess in fly shops coast to coast. Boomer especially proclaims the effectiveness of this fly during the firsthour of the Baetis hatch. It is during this early stage that the biggest resident trout will briefly inhale the activenymphs before again vanishing back to their deeper holes. For these fish, this is Boomer’s go to fly. So whetherbig fish or small, whenever the hatch causes fishermen to grab for a heavier pair of capilene undies, thispattern is a fly for all reasons.