L&M 180 on pulse, sort of between blinking and steady. I also bring small blinky backups and have a rain jacket with a built-in light and use reflective material.
I feel like all of our lighting and visibility hard work makes *us* safer, but for the regular cyclist, just raises the bar. Anything less than optimal equipment will draw charges of "I didn't see him, he wasn't lit up like a work zone Christmas tree!" from a motorist after they hit us.
You shouldn't have to optimize visibility to ride without getting killed. A simple front and rear light should be enough. But I don't want to risk my life on something that "should" be the case.