Rubber Legged Copper John
hook: size 10 Tiemco 3769 or other 2x heavy nymph hook
thread: 6/0 UNI, black
head: black bead, 5/32”
wingcase: flashback (mylar or other wing material), pearl
thorax: peacock herl
legs: silicone grizzly legs, silver peacock
body: Ultra Wire black, large
tail: goose biot, black
Place bead on hook and wrap thread to hook bend. Tie in two goose biots for the tail. Tie in the wire for the body. Wrap thread forward over the tag end of the wire and goose biots to midway across the hook shank. Wrap wire around the hook, 2/3 of the length, building up a tapered body. Tie off and trim. Cut the flashback material in a 1/8” wide strip. Tie in. Tie in a sili leg on each side of the hook shank at the thorax. Tie in a couple strands of peacock herl. Wrap thread to beadhead. Palmer the herl to the beadhead, building a thorax, tie off and trim. Fold the flashback forward, tie off and trim. Whip finish behind the beadhead and epoxy the threads and wingcase.
Fish the fly like a standard nymph. This should be a deadly roughfish fly with the sili legs.