The kind folks at SPIRIT RIVER sent me some of their new UV 2 materials to play with:
Diving BWO Egg Layer/La Fontaine/Variant … Daiichi 1560 #18, TMC 3761 #20 and SPIRIT RIVER UV 2 Fine & Dry BWO Dubbing…
More here:
http://planettrout.wordpress.com/2012/08/13/uv-2-spirit-river-tying-materials/
PT/TB 
See now, the manufacturers send their material to the wrong people - if they sent me some and I got fish with it, they’d know it really works - not just with PT’s skill.
PT, I think that the UV stuff could have a big impact on our fishing success… Looks like great stuff, I need to give some a try…
Also, love the patterns you share both here and on your blog, keep them coming. Nobody can ever tie or have too many flies!
PT,
Nice fly and some interesting materials. Tied some caddis emergers with UV dubbing to use on the Madison, but never did hit the hatch right and had much better luck with CDC & Elk on the Mo; need to try some with UV dubbing under the CDC - thanks for the idea, Wally http://www.youtube.com/watch?v=ebobz52XzB0 (noticed that Doug gets a mention on the video, as well). Tied up some scuds with a pink/orange mixture of UV Ice Dub for a tailwater trip that didn’t happen this spring; hopefully, I’ll get to use them next April.
Regards,
Scott
Scott,
In the tying video on my BLOG post, Bill Black from SPIRIT RIVER, suggests using white thread with the UV 2 materials to reflect light back out. I tied that Diving Baetis with Tiemco 16/0 White thread and will be doing the same with the UV 2 Peacock herl (also to reinforce) on a Cream Miracle Midge/Variant I am tying for the East Walker River and FF there this Fall. Like dr korn, I believe that the UV treated materials could have a tremendous impact - under certain conditions. The last time I played a scientist, I fell off the bar stool, so I’ll tread lightly here…
BTW, that fly pattern I used, the Diving Baetis, by GLF, came from Al & Gretchen’s “LaFontaine’s Legacy”…a wonderful book, that has a lot of creative ideas from the master…
PT/TB 
Dear PT ,
Stay off the bar stool. I had never thought of using a white base and or tying thread to refract the light , it makes sense though as a dark colored thread would mute the uv colors. tie the whole thing in white then dab a pantone on the head. ahh, you know .
Hello guys and gals… I am no expert on fly tying, but I have to agree with mr black from Spirit River in reference to working with UV materials. When I first started working with many UV materials three or four years ago I predominately used black thread. It worked, however when through tying, if held up against one tied with white thread, they are shady if not dark. I’m not saying they don’t still work, the colors are simply curbed somewhat.
When fishing with them, it seems that the white threaded ties get torn up the fastest. I have quit tying with all colors of thread except white, and at the end of the tie, I put on a black head, or red head or whatever the pattern calls for. It makes for a richer colored fly.