Some time back, I worked on a few methods of achieving a “gill body” for my nymphs. I was convinced that Ostrich herl was the way to go. I think I still am convinced. For the time being at least. It has such fine dense fibres, that seem perfectly sized for nymph gills. This is particularly so for the smaller nymphs, #14 and #16. The problem with this material is that it is so frail, and even a good ribbing fails to protect it, and it ends up tattered. The main problem is that the stem of the herl is frail.
So what we did here was to wind a body of V rib, leaving spaces between the wraps. Then the herl gets wrapped into the spiral between the strands of V rib, where it’s stem sits low and protected, but the lovely fine fibres of the herl protrude.
Then trim the fibres top and bottom
And here is the body that results:
How you put the rest of the fly together is up to you, but here is an idea: