Tonight's first long event.
Today they replaced the connectors on the line going to my cable-modem and the connectors outside in the box and ran a new drop to the post. Things looked good at that point but I wasn't having consistent packet loss at that point anyway so it was hard to tell. Unfortunately it didn't fix the issue, tonight from 5:40-7:15 I had 12% packetloss with spikes much higher than that at the start. See the attached pingplotter graph showing the first hour.