Nice looking flies but my Chilean guide proved to me that these ugly dragons catch big trout when I was there fishing last November. I went through a dozen of these flies in a day on decent rainbows and browns that had a knack for finding underwater logs to wrap around.
See attached. I tied these uglies and I was amazed at how much the trout loved them. All that mattered was the profile and the color of the fly. Some days they wanted black, others gray etc. The tie uses foam that you cut with a pair of scissors and a little deer hair for wings. You double over the foam and wrap around the double layer to make a head. This guide claimed that dragon flies have translucent wings that cannot be seen very well when they are in or just above the water (especially if the wings are moving).
And these bad boys were a dream to cast.
Just throwing this horrible looking fly into the pile.