I think you’re saying that the smallest bucket of packets are all packets that would have been combined with a larger packet of that had been an option... but t

I think you’re saying that the smallest bucket of packets are all packets that would have been combined with a larger packet of that had been an option... but that doesn’t make sense. That class of packets includes TCP SYN, ACK, RST, and 128 bytes could fit an entire instant message on many protocols.