I, and my buddies have caught more fish on this than any other single pattern. It is usually fished in the traditional down and across and swing method. However, it can also be "dried" by false casting and then fished as an emerged cripple dry.
Hope that makes sense?
I sent one of my fishing buddies this photo yesterday. Got this email from him today:
"That is the number 1 fly that you should be sure and have enough to trade me 2 dozen perfect ones for a lunch and a dinner"
Perhaps a better version of the fly:
Although I am out of good peacock!