I have recently tied and tried this pattern. I can safely say its a brilliant top of the water fly. It floats for ever and makes a very tempting wake for the fish . Last Friday night I hooked but eventually lost a fish at Hillend using this fly. Then had another half dozen takes and rises to the pattern. I believe it has better properties than the muddler but is fished in much the same way as that particular fly.
Its very easy to tie.
Hook. 10 Kamazan B170
Thread. Black
Body. Green Drake supernatural blend by David Rice
Wing. Elk Hair,prepare in a stacker before tying on
Thorax. Dark Olive Possum
Thorax Case. Green Foam purchased from Hobby Craft Store.