Features of the Blue Winged Olive, Cripple
Any trout fisher that has spent a frustrating time trying to imitate BWOs in a heavy hatch only to watch every pattern get ignored will love the Crippled Blue Winged Olive.
Trout sometimes ignore all of the healthy mayflies during a hatch and only eat the drowned or stillborn adults.
This is where the Cripple Blue Wing Olive excels.
Make sure you have some cripple patterns in your box and you'll have the secret weapon when the fish get ultra selective.