I do not have scientific proof but it seems to me the more bells whistles lights etc we add the more we tend to ignore them. Remember the 70s and car alarms came out? They would alert everybody your car was being stolen. Now we here an alarm and evrybody is like I so hope tha car is being stolen. I do not see as adding more flashers would help as if you do not see the tail lights or the spoiler lights who is going to see little lights on the side mirrors. And to lose the functionality that is effective is a lose lose to me