I can always expect out-of-the-box humbling when dealing with this kind of puzzle where my mind strongly points towards only one style of solution. This Sum puzzle's challenge is that the duplication sucks, but this trackloop solver the entire duplication-sucking problem, lets the rotor be entwined with the tripartite salt, and does it all at 18r, so...we're done, aren't we? I know this this isn't first place, so what am I missing? I can't really color the salts after they're attached to the rotor.