I don't worry about it. I just worry about being visible. I have the blinker that gives me a choice of being a steady blinking, or a strobe that goes left to right, or just a straight up light. I just vary it depending on my mood. I also have those LED's for my dropouts, and I always use that one for blinking. I just think it looks better if they blink. But overall, the main thing is to make sure you have bright lights and enough reflective gear to be visible for cars.
Koffee