Great now I'll need a lawyer.

I made some comparisons between designs using period 5 like this one, and ones using period 10 which seems like the natural one for rate 10/3. After some back and forth between which of them I managed to get lower instructions with, I kind of just settled for period 5 based on a hunch and some coolness bias, and spent all my remaining time optimizing it without really knowing for sure that it can go lower than a well optimized period 10. If my hunch was right then this one should be quite tricky to beat. My best placement so far was rank 8 so I'm crossing my fingers for top 7 with this one.

Fun fact: 46% of the instructions are used by arms pulling the input.