Great info Stephen, thank you for putting it together. You are quite right about how the "teeth" can poke holes in nearby gear of the PSK. I made a little thin leather sheath/pouch for mine just for that issue. There are different versions of these saws on the market which includes junky ones.

You can replace the metal rings with short loops of 550 cord. This cuts down on bulk for a micro kit and still enables the bow technique.

IMO these saws are best suited to micro kits where your primary cutting tool is something tiny like the Ritter RSK-MK5, where cutting a ridgepole and such would still be a challenge with such a small knife. If I had a honkin' ESEE-5 then blasting through a 1" or 2" limb is not an issue.