....perhaps we should be calling this current version the BAM for "Brass Angel Metric", rather than SAM!?!? ;c)
Maybe JAM? 'JIN's Angel Metric' because it's his version.
That could be a good one, but I'm less than certain Jin is the source or originator of this version. Seems from your operations video link that it has been on the market from many sources for quite a while. Microcosm, OKMO, Eachine, Enginedly and perhaps several others seem to be selling these, so who knows who actually made them?!?!