Sawyer's nymph is significantly different from the PT we know today. He didn't even use thread. Just pheasant tail fibers and copper wire. He didn't tie in legs because he thought they were unimportant on the swimming type Baetis nymphs he was trying to imitate. He felt that the swimming type nymphs held their legs along side their body as they swam. I only use the legs because they are simply the left over tips from tying the thorax. I'm not really sure if it matters one way or the other?