Semperfli Body Wool - Chadwicks 477 Substitute
This is the perfect wool for the killer bug classic Grayling pattern from nymph expert and legendary river keeper Frank Sawyer. This fly pattern still doesn't disappoint, but if you follow Sawyers tying instruction, the killer or (grayling) bug as it was originally named, could and should only be tied with one brand and shade of wool, Chadwicks No 477.
At Semperfli, they have a card of the original Chadwicks 477 which they used a blend of wools to match dry and particularly wet with their substitute as they developed it. Now this is one of the most accurate Chadwicks 477 substitutes available.
