Had a close one today. Rural 45mph road, lightly traveled as it's adjacent to a more efficient one. Little to no shoulder. Two cars were coming towards me, and maybe when they're 100ft away the trailing car (which was pretty much tailgating the other) gets onto my lane for a pass. Buzzed me close enough that a sedan felt like a semi passing through. Had one of my Cygolites going on daylight flash, but apparently that did not get their attention. I wasn't hugging the shoulder (since they REALLY don't see you then), but wasn't riding in the center, either. Far Right as Practical pretty much saved my life in this case.