RE: string loops
If you dont have the tie nocks inbetween the loops no matter how well tied you think you have your loops they will pull together and pinch your nocks. For the tie nock sets I just use .021 or .025 serving thread and do the half hitch knots. When you have done the last half hitch you make one more tie right on top of your last half hitch knot and that will lock it in , then you burn the ends off and and smooth it down while it is still warm and pliable.