I used my knot for a few years, but liked Ryan's better, so switched to his. Ryan's knot is adjustable and easy to tie; mine is not adjustable and a little harder to tie. Frankly, I rarely need an adjustable knot, and I tighten Ryan's knot so tight it would be difficult or impossible to move anyway, unless I know I’m going to want to adjust it, in which case I will also add a dab of glue when I know it is in place.
There are a couple of advantages of my knot. Once tied, it won't accidentally move, and doesn't need a dab of glue, which some say isn't good for the string anyway. With Ryan's knot, I and most people probably grip the string right under the knot, assuming two knots are used, as in my photo. This technically isn't allowable in most trad 3D tournaments, which require that a finger must touch the arrow nock. Nobody has ever complained about the way I hold the string, but maybe if I ever made it to the final shootoff someone might. My knot lies flat on the string and you can grip right over the top of it so there is no doubt that a finger is touching the arrow nock.
Anyway, here are the links to my string nock, which is in two parts:
https://youtu.be/HTsPDIp6loI?si=Wtuxg7Z6m2kePhjRhttps://youtu.be/i9SrH3Amjbk?si=GcQ4jf4OzMz_62Vm