5-box Latency, "One box" or "five boxes"?

[Jafula]

On your master, the latency effect is doubled. Your slaves each have a latency of 70ms when they send data to the server. The data gets return to your master which adds another 70ms for a total 140ms. If you look at the slaves, they should follow the main much closer than the other slaves. This should hold true for all slaves.

That...doesn't make sense at all. The traffic is going the same distance whether you run on one PC or 5. If you run 5 copies on one pc, the traffic from your slaves still goes all the way to the WoW server then all the way back to your main's account on the PC - doesn't matter if they're on the same PC or not.

I'm confused; what am I missing? Here's how I see it.

When I press my jump key, on every client, I see each toon jump (the toon whose account it is). Then a little bit later on every client I see everyone else jump (those that were not the account toon). I assume a third person will see all 5 characters jump at the same time.

I believe wow does the action immediately on your client, and then it sends the data off to the server which sends it back to those around you. Hence the delay.

I would go mad if I had to wait for the server to respond before I saw my character respond to my actions ...