When a fly lands on the water, the heaviest section of the fly is the rear end. If the tail end breaks the meniscus of the water, it can lead the whole fly to hang below the surface.
This is a way to prevent the tail end from breaking the meniscus.
No answer to your question here, but, I like to fish with the back half ‘sunk’, like an emerger.
LOVE those vise jaws!
SCG
Thanks Guy!
I really like to fish the comparaduns , your adaptation makes sense and
looks great…
Good thinking !
Stay safe
Thanks Steve!
In addition, in forming the flare of deer hair at the rear, the underbody is deer hair wrapped around the shank of the hook, before dubbing, which will assist in buoyancy.
Compara cork, new tie method 
Yes, a good name!
I really like the hair underbody , I would like to witness
1st hand the fly riding high on top the water.
I would imagine its would stay buoyant as a cork…
Especially on the slow spring creeks I enjoy.
I would love to see the method for the body.
I get it alright but, … any way
Good work! You caught me
Be well
A question, as the shuck is the remains of the shell of the nymph and is being used to deceive the fish, shouldn’t it be on the bottom of the fly so it would trail in the water?
Tying steps
Photos 1&2 reversed.
The flared hair won’t prevent the shuck from lying on the surface and being visible.
Just stops the rear end from sinking upon first hitting the water.
The original photo shoes the trailing shuck oriented upwards.
In the last photo below, you see the shuck in its “normal” position.
Will try to post a photo of the fly on the water in my slant tank in a little while.
Thats cool , and not the way I thought it to be assembled but,
my DUH moment for sure,
Look forward to seeing it floating…
Thanks !
So the hair is splayed around the hook with thread pressure
as you hold and shape the tail flare.
I suspect cross section quality of the hair is in your details,
that fly would land soft as leaf and hoover over the surface for seconds
with a bounce or two.
and that is what I am talking about !
So the hair is splayed around the hook with thread pressure
as you hold and shape the tail flare.
I suspect cross section quality of the hair is in your details,
that fly would land soft as leaf and hoover over the surface for seconds
with a bounce or two. I understand splaying the hook with hair is well known
but, the rain coat dubbing is the cats behind … IMHO
and that is what I am talking about !
A couple “not very good pics” of the fly on the water. I think you can see the “dimpling” on the water at the shuck.
Yes Steve. I think the deer hair body and flare at bend was used in a lot of old-time hex patterns.
I know that Kelly Galloup uses this technique in some of his smaller fly patterns. But, trying to get the right colored deer hair for the body is a problem…
Also, had never seen the technique used on a sparkle dun with the trailing shuck.
What with the bubbles ? are they produced by the fly?
that would be magic for sure…
The ride looks marvelous !
No, bubbles form on the glass in my slant tank.