Nice work OP. I don't remember there are analysis about miner pool due to to TX fee, so i find it's interesting analysis. I also appreciate you make your website open source. But aside from required parameter (
txindex,
zmqpubsequence, etc.), do you run Bitcoin Core with default parameter?
Also worth to mention there are several protocol used by miner/pool for faster block propagation. IIRC there are FIBRE, Falcon and Fast Relay Network.