YOU DO!!! Right here at AT That jig was purchased from the classifieds. I learned every step of string making from the pages right here on AT. Two months ago I had never made a string and I haven't had any guidance outside the pages of AT. I made two strings that were too long. The third string was right on the money and it had ZERO peep rotation when I was done. Looked every bit as good, and has performed every bit as good as the dozen custom strings I have purchased in the last two years. The one above ended up with about 1/16 of a turn of peep rotation.Wish I had someone to teach me that.