The thing is, any offset or jitter that can't be picked up over the network is irrelevant to what the author is trying to accomplish. And if it can be picked u

The thing is, any offset or jitter that can't be picked up over the network is irrelevant to what the author is trying to accomplish. And if it can be picked up over the network, I don't see why Chrony is the wrong thing to measure with. "system time as distorted by getting it to/from the network" is exactly what is supposed to be measured here.