Hi Joe - Fly Rite #41 is a perfect match for the GD duns. White poly yarn mixed with a bit of black works for the spinner wings, but I prefer to tie coffin flies with hackle (grizzly), and just trim the bottom. When the coffin flies hit the water on Pine, its usually an excercise in futility, as there's a zillion of 'em, and the odds of a fish taking your immitation (or you picking it out of the horde) are slim.

I'd rather concentrate on the nymphs and duns. The fishies whack the snot out of a GD wiggle nymph!

Let's hope we catch the timing right this year.....