Ugh, I have a light mounted to the rear mounting bracket already. And another light on the seat post. I quit strapping the pack to the rack due to the fact that the seat post with its light and reflector were blocked.
My rack mounted light offers 220 degrees of visibility. Should I use my old Nashbar Townies, by the time I move them back far enough to avoid heel strike, then they act as blinders for the light.
I just want an alternative location that is stable, secure, and can somewhat aim the light properly.