web,
The fly that you posted from FAOL is one of mine. I have caught several species of fish with it, as have others who have tried it. I have found it to be a good smallmouth bass fly as well as a good trout fly. As Leonard hinted at, you can palmer the pine-squirrel zonker strip in front rather than using hackle, ala the "Slump-Buster", but I prefer the soft-hackle collar. I tie them in olive and brown and have done well with both, depending on conditions. If you have any questions about tying it, you can email me at stevec53@cox.net.
Steve