I am an aspiring knot tyer with little experience. I do have an extremely small clientele who buys my limited skills when needed. We live aboard, and a neighbor of ours handed me this Fid-O that was aboard his boat when he bought it, wondering if I knew, and I am at an impasse. When I looked online for answers I saw a question from an IGKT member asking if anyone had one. It's not mine to give or sell, but I sure wish someone would enlighten me as to how to use it. I would appreciate any feedback anyone might have; I thank you in advance.