I had the usual strobes front and rear but still had some cagers buzzing me. then I decided to try having a strobe on my left drop bar. I get more courtesy room having that 2nd strobe out on my left side. I think cuz it's a reminder as they are passing that they are not past me yet. I know it relates mostly to cagers passing on my left but when I'm taking a lane and I have those 2 strobes going - I have more of a pressence. people may roll their eyes, but they are giving me more courtesy than when I had just the one strobe on my back rack