I have to wonder if a headlight modulator would have prevented my crash back in '06, I guess I'll never really know. But after buying the Rock I installed a headlight modulator (albeit a different brand) I really appreciate the difference it makes. I've actually had a 'er gentleman stop his pick-up in the middle of the road and threaten to whoop my ass if I didn't turn "those bright ass flashing lights off." He went on to say they were annoying as hell, and I did manage to get in, "that's the point" before my ride partner, a fellow brother Mason and Georgia State Patrolman, exited his bike, flashed his badge and proceeded to inform this gentleman of the legalities of it. They are 50 state legal as long as they go off at dusk, much to the dismay of the local city occifers. I guess that they wanna be the only ones with pretty blinking lights and headlight flashers. I've got a video of mine on photobucket let me see if I can locate the link to it. Ah here it is along with the Stebel horn.