I have a MG-P pocket rocket on my helmet along with the MS on the handlebar. So far it is a great combo. The light on the handle bar gives great lumination of pot holes and flood while the helmet light gives greater throw at specific target. It save me more than once having that extra helmet light.

In my morning commute, there is a section of road where I have the blinking yellow light at the intersection while cross traffic has the blinking red. More than one time car does not bother to stop at those intersection and run the red. To make matter worse, there are houses at the corner along with parked cars. They sometime do not see me coming with the light at my handlebar. However with the better throw of my helmet light, I can throw a beam into their corner lighting up the intersection and they slow down thinking a car is close by the intersection. It works for me so well that I'm seriously thinking of getting the MG-X thrower flashlight which throws even a tighter beam.