I was wondering if you process the last hop differently to the others such that local issues (pingplotter host issues) could have a greater effect?
There's not enough of a difference in the processing that you'd expect to see any difference at all - let alone as much as what you saw.
Well, I'm so sorry to have wasted your time but I can't seem to reproduce the results I was getting last night so perhaps it was just a fluke.
Keep an eye on it and let us know if it reoccurs. It's possible that the latency spike you were seeing didn't exactly match the download period, and that there was some other factor in play.
- Pete
