I also live in Phoenix using Cox and have had numerous experiences with lag.
The lag started in the early weeks of the game. Monitoring pings/tracerts, I observed that 80% of our traffic time was being spent bogged down in Cogent servers. My wife and I would regularly experience small lag spikes and rubberbanding. Eventually this went away for a few weeks.
Last Monday, the lag started back up again. This time, observing traceroutes indicated our ISP changed us to route through TINET servers, where we again observed a single hop consuming 80% of our travel time to the SE servers. Ping tests indicated our response time was up 40ms from the norm (90-100 to 130-140) with regular 'time out' intervals. The lag was unbearable, and my wife and I would routinely experience outright freezes lasting anywhere from 2-10 seconds. Tuesday through Sunday, we had zero lag issues.
Yesterday comes, Monday again, and we experience the exact same issues (arguably worse, numerous 15+ second screen freezes). Ping was back up to 130+ with regular 'time out' occurrences. And for some reason, the IP of the hop taking the longest appea
red to be located in France...
Monday is our one raid night each week where we can guarantee everyone in our FC is on. We started doing a quick Garuda HM kill for someone, my lag was 'ok', but my wife froze up at the first tornado rotation phase and didn't unfreeze until the phase had ended and we had Garuda a few seconds from death. We went to Coil next, where my wife locked up for over 30 seconds after zoning in (her character could move during all of this, but she didn't see server side updates). She and I relogged and we tried to engage ADS. We both kept having constant 2-3 second lag spikes until we finally got hit with a 7+ second spike that got us killed.
Not wanting to waste another Monday raid night, my wife and I logged out, downloaded BattlePing, spun up the free trial (20 minutes) and quick queue'd into Titan for a test run. Ran flawlessly. So we both just paid for 30 days and proceeded to clear turn1-4.
It's sad that it had to come to that, but there doesn't appear to be many other choices available to us if we want to continue to raid reliably on nights where I can only assume the traffic to the servers is high, since it seems unlikely that this will be consciously fixed by either our ISP or SE.
Addonex
P.S.
We had two other FC members that live in Las Vegas that are also on Cox. They've experienced similar (though not as glaring) lag issues the past two Mondays as well. Those two also had to download/pay for BattlePing in order to raid without lag last night.