Hyperlights are good warning lights. Though I don't have them on my Rocket, I have a set on my Vstrom, and I have had co-workers remark how "irritated" they are by them. Because they're ...so bright and conspicuous. The set I have also stay illuminated as running lights (much brighter than the stock tail light) and then will pulsate 10 times when you engage the brakes, and then will stay on BRIGHTLY illuminated until you release the brake.
Many of you know this, but good to read it again...
You're best defense against being rear ended? Always stay near the side of a car that's in front of you and always keep an eye on your mirrors.... until traffic stops and stacks up behind you.
If you see someone closing in fast while you're stopped; get ready to dart your bile alongside the car in front of you... or if no car in front of you; move laterally quickly.