Hi vis great in use some times , as i drive in the london area, & outside on the motorways, & have door mounted mirrors on my van ,& have found that when motorcycles are in my view, its the brightness that some times i just about see , as they pass in traffic , or on dual carraige ways ,but as im motorcyclist some 35 years,in practise & theory
position on the road , lane , is vital, and knowing by antisapating & reading the road traffic , & hazards, is best practise to keep in mind .So radar on as soon as you get astride your motorccycle ............