I don't really feel like I know the right approach for this metric on this puzzle. I've gone back and forth about whether proliferation is correct, since it costs a few arms, but so long as it's not doubling your arm count you're probably good? Initially had 2 hexes of track, dropped them at the cost of cycles, but the solution hardly feels efficient so far, proliferation makes silver faster than it can be consumed and the triplex arm is overworked. Adding another arm to fix the triplex problem fails to save sufficient cycles because the non-triplex fire arm becomes limiting, and adding another arm to *that* seems like the path to madness, so yeah, suffering!!