The first time I've tried to minimize instructions. I committed to a cadence of 1 output per 12 periods and went where that took me. Arm 5 seemed pretty inefficient but 4-fold conditional behavior is tricky. Arm 5 is using output suppression on the Ani to distinguish the two mors atoms at the cost of 6 instructions. The purpose of the track loop is to delay every other iron atom by one period.

I've run out of wordplay on "who" to use as solution titles next week unless I name them after the World Health Organization or some such. We'll see!