I've seen that video and in fact, I've seen trout take hovering damsels on Hebgen Lake just like in the video. You can take them using floss blow line fishing. The wind usually begins at about 10 AM. You need a float tube or boat to be in the right position but when the wind is in out to the lake, you can get the fly to the fish from shore.
"Blow line fishing" is a technique described by both Gary LaFontaine and Gary Borger.
Gary Borger wrote about it in his book, Presentation pg 286. I've refered to Presentation before as one of the greatest books on fly fishing because it covers so many techniques such as "blow line fishing" that you will not find in any other single book. That is why used copies demand a premium over the original cost.
[ame="http://www.amazon.com/Presentation-Gary-A-Borger/dp/0962839256"]Presentation: Gary A. Borger, Jason Borger: 9780962839252: Amazon.com: Books@@AMEPARAM@@http://ecx.images-amazon.com/images/I/41jGyMeS5kL.@@AMEPARAM@@41jGyMeS5kL[/ame]
In Gary Borger's technique you use untwisted polypropylene yarn that is flatten and ironed to straighten the fibers. Then you form a "kite" out of it by whipping finishing a loop into it and attaching it to the end of your fly line and then attaching 2 feet of 2x or 3x mono to the "kite". The heavy tippet material is to prevent break offs. The strikes are vicious.
When there is enough wind blowing from off shore, you raise your fly rod and the use the wind to make the fly hover and dap the water surface just like a hovering damsel fly.
You can read Gary LaFontaine's article below:
"Floss Blow Line - Fly Angler's OnLine
http://tinyurl.com/atpchr5
http://tinyurl.com/lemy5qj
https://www.google.com/search?client=safari&rls=en&q=floss+blow+line+fly+fishing&ie=UTF-8&oe=UTF-8
I use a pattern that will sink. Damsel crawl under water to lay their eggs and they drown. Drowned damsels are rarely fished and the trout are not shy about taking them.
[ame]http://www.youtube.com/watch?v=-GtZCqRu5wg[/ame]
Here's what Jason Borger has to say about damsel patterns:
"One question that I/we often get about this fly (inspired by a pattern that my father saw in New Zealand back in the 1980s) is, “Why don’t you use foam for the post, it floats better?” The answer is based on years of observing damselfly hatches and is fairly simple: because sometimes we want the fly to sink. If that sounds odd, keep in mind that “dry flies” (or perhaps more accurately “dry insects”) sometimes aren’t so dry…."
http://www.fishfliesandwater.com/2010/02/21/braided-butt-damsel-fly-pattern/
I wrote about my approach to damsels on this post.
http://www.theflyfishingforum.com/f...325683-favorite-damsel-body-2.html#post574806
