I use a Cygolite Pacer 800 front on flash during the day and even in bright sunshine the reflection off road signs is noticeable. In the rear I use the hotshot along with a bright vest with a flashing cheap red led to attract attention.

I hope to attract as much attention as possible riding in bike lanes on high speed 4 to 8 lane feeder roàds designed to get traffic to the Interstate quickly.

I have noticed drivers giving me more room and actually yielding to me where appropriate verses not using the equipment and not being treated the same. Of course this is by no means scientific, but in my experience it seems to help.

Still keep an eye out for drivers making lefts at intersections or to smaller streets. They can't be trusted to yield.