Pivot-only means it's hard to get stuff off the input quickly. Wands to the rescue! Especially useful here, since we need salt only half as often.

Pivot-only min-rate can get as low as 6, but my attempt had such a bad latency that the first output would have been on cycle 64-ish. I like how this turned out.

(If you can't find the rotates, check the map.)