This is a pattern that pat (4wt extreme angling) turned me onto a few years back. it has fished really well either nymphed or fished as a dry. i had my best day ever on dries, and it was with this fly, a few years ago. not only does it fish well but it is easy to tie.
Tail-partidge feather fibers
Body-goose biot(color depends on hatch)
Wing-long cdc feather tied in behind thorax then pulled over and tied off
Thorax-dubbing (on this one i used peacock ice dub, but usually just use an olive dubbing)