Use a double-ended doll needle instead of those fancy nail knot tools. $2 at Maries sewing centers.
THis allows you to make the wraps perfectly and then thread the line thru the eye of the needle, then pull the needle out. The wraps are never disturbed thru the whole process.
The double-eye lets you snap it onto a clip for your vest.
I've been doing this method for years and don't think it can be bettered, personally.
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