How to tie Pat's Rubber Leg Stonefly to totally dominate Sierra Nevada trout

The Pat's Rubber Leg is an awesome stonefly pattern for fly fishing in the Sierra Nevada. Stoneflies are abundant in our waters throughout the year. Because of this it can be tied in a wide range of sizes and in a variation of colors as stoneflies vary in color depending on location and time of year. Flip a rock over and take note of how the stoneflies look throughout the year.
Hook: FM12 70 #12
Bead: 3.2 Black Round
Thread : Veevus 8/0 Black
.015 Lead Wire
Life Flex Legs - Black
Small Stonefly Chenille
Black/Brown