It's hard to overstate how significant was the change above. I'm now truly up against the network, so it doesn't show in the times. But lock contention went from limiting this machine to 25 minutes, to being unlimited on this machine by any factors other than network, until 100Gbps. And at 100Gbps (>20x my current speed), a milestone run to 950k takes 60 seconds. And at that point it's up against nothing but CPU and RAM speed. Milestone is fully scalable with hardware at this point. The only exceptions are the header sync and the confirmation chase (which can easily be made fully parallel in milestone).