Got my first batch of deer hair yesterday, and spent a few enjoyable hours at the vise. This is fun! I may never tie another trout fly again. One concern I had was thread. Researching the topic I saw many admonisments regarding using Gel Spun, ship hawser , or some other super duper strong material. Having only 3/0 monocord, that is what I used. I never had a single problem with breakage. Am I not pulling hard enough? The hair seems tight, and it spun pretty well.