[knotty panda]

The question is, is the larkshead knot on the clasp single or double? It should be a single thread which means the drill holes would only have to be large enough for a double thickness of silk. Not sure what you're working with, danachit, but that's what I've seen. Still, I think gimp is an improvement over this technique as the jump ring on the clasp moves freely. The larkshead knot on the silk is a stationary knot and unless you are using a very small jump ring, the larkshead is not only visually unappealing, but a larger jump buts more stress on the knot.