I was thinking more along the lines of flashing lights that could be turned on or off at will, not a headlight modulator that is constanly flashing. I recently had an incident where I was overtaking a mobile home going downhill in an overtaking lane, "Eaglehawk Neck Hill", for those who might know it, travelling at about 110kph, when the mobile home decided he'd pull out to pass the vehicle in front of him, I had already passed the vehicle behind him so it was not like I had just pulled out. The guy obviously didn't see me, or just didn't look and pulled out just as I was overtaking the rear of his vehicle. He pulled out quite fast and I had no chance of slowing down to any extent as the hill is quite steep, so my only avenue of escape was to swerve on to the oncoming lane to avoid hitting him. Fortunately there was nothing coming in the opposite direction, in fact if there had been a vehicle coming in the oncoming lane then I would never have attempted to pass in the first place for safety reasons. I wondered later if I'd had flashing lights on the bike if he would have seen me coming, perhaps, perhaps not, who knows! I wouldn't like a headlight that was modulating constantly, but rather something that could be turned on and off, that could be used to give warning to a vehicle that a motorcycle was about to pass. Of course having a white Police bike, I'd probably scare the living daylight out of them,
but that would not be my intention, rather just to let them know, "move over buddy, I'm comin through"!