Hi Chasm54,

Have you read this? : http://sheldonbrown.com/reflectors.html

Thats what I am basing my bias for lights instead of reflectors. Don't get me wrong, I will still wear a hi-vis vest or jacket, but I won't be focusing on reflective material much further from that.

And yea, a helmet really doesn't do much good, but I haven't found much conclusive evidence for or against. If there was a paper detailing how they were harmful I would not wear one.