The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
1. The exuviae of these little buggers are pretty thin due to their size, so there's not much to them. Most z-lon brush style tails work fine for March Browns and such but are usually much too bushy and course to effectively imitate the tiny baetids. They usually turn off more fish then they fool in my experience. Half a ply or so of fine antron yarn (3 or 4 ply, like Aunt Lydia's) with the tip melted does a much better job. Save the z-lon for a few short fibers along the sides to simulate the empty legs.
2. Though the shucks appear fairly translucent to the naked eye, some baetid nymphs are pretty speckly and a little of this pigment does remain in the shuck. A few wisps of mallard flank included with the shuck material addresses this.
3. You'd think clear filaments would be best, but in use the stuff is way to bright and sparkly. Pale pastels (I prefer pale ginger, but don't think it matters) are far superior. When used sparsely, these colors give the illusion of natural translucency much better. I'm not a big fan of gray for the opposite reason. It tends to disappear in the surface meniscus. I like dun hackle on virtually all my parachutes for this reason. It doesn't obscure the color of the body & wing or obscure their outlines as much. A lot of underwater observation looking up at floating flies has proven this to me.
4. In terms of actual usage, my #1 fly choice always seems to be a dry imitating either the dun or spinner, closely followed by a nymph in the top three inches of the water column. After these, I use a north country wet or a little hackled wingless wet fly to simulate the diving/drowned spinners a lot. Well down the list is the Quigley Cripple or klinkhammer type.
5. The only "shucked" pattern I carry for baetids is a loop winged Hackle Stacker, sometimes with the shuck tied between the split tails as mentioned above. As often as not though, I'll trim out the shuck and occasionally even the wings as it has become my "go to" when both duns and spinners are on the water
and I'm not sure which one they want... This happens a lot!:)
the knotted & tied shuck is a beautiful solution, but man is it a lot of work. Not easy work, either! Especially with the sparse tiny shucks.
I tend to use a sparse amount of "Haretron" type dubbing for my smaller fly shucks
My #1 choice is a sparkle dun...
...and when there are duns of one fly with spinners of another bug...
the knotted & tied shuck is a beautiful solution, but man is it a lot of work. Not easy work, either! Especially with the sparse tiny shucks.
Yes it is. The easiest way I know is to tie the knot at the head of the shuck, then slip it down to the target spot, apply the super glue, then pull the knot fully tight again (it loosens some when I slide it down). One thing I like about doing this is that the fragile mallard or wood duck is then incorporated into the more resilient antron shuck, protecting it some. Gonzo just uses a bit of glue, but I have had luck with CDC shucks, and trying to glue them without a knot of tying thread is just asking for trouble.
I always find it encouraging when other tyers come up with solutions similar to the ones I devise. Makes me think I might be doing something right after all. Thanks to all who have posted on this topic.
When you say Sparkle Dun are you talking about the original? They disappointed me years ago for anything smaller than a #12 until I started to use z-lon in place of the deer hair.