Not one I'll be tying with regularity; foam is so much easier. Did not know Ron O'Neal was a fly fisherman; don't ask no questions why.
hook - Dai Riki 135 #12
thread/body - UTC 140 grey brown
core - 7lb mono
tail - stripped hackle stems grizzly
abdomen - elk hair dun
thorax - muskrat
wing - hen grizzly
hackle - grizzly/brown
Part 1
put a loop on the end of the mono
mash barb, start thread at mid-point, tie in mono
prep hackle stems; tie in
hook mono onto gallows; clean, stack some elk, trim butts/tie in, allowing hair to encircle hook
pull fibers back along mono, rib up (shank length), and back to base