I use a knot tied out of serving material. However, the knot is not tied near the pin. I find it easier to set it so that I line the knot up with the bottom of my sight housing. It is important to have a few good solid anchors. I also use a kisser, but I don't find it consistant by itself. Therefore, I use the knot above the kisser, touch the string to my nose, and anchor a knuckle against my cheekbone.