So, does it vibrate, as claimed?
Define "vibrate." I noted up thread that there's a buzz starting about 17 mph with the lights on. I notice it more when I'm coasting than pedaling (probably because when I'm pedaling over 17 I'm pushing hard to stay with a group), and it diminishes at higher speeds. There's nothing to hear. The first time I felt it I was wondering if there was something wrong with the bike, like a fender out of its socket rubbing against the tire. I think it's getting less noticeable with time and miles, but I couldn't swear to that. Light off, no effect.
In the BQ
article, they stated that after two consecutive all-night rides that their hands were numb and tingly. I gathered that it was pretty significant. Total test mileage was 1560 miles. Seems that your experience is/was more favorable. I'll give it more thought, when I'm ready to buy a wheelset.
I'm just looking for a more permanent solution than the battery-powered LED headlights (I run 2) I currently use. I've had two crashes, because the lights weren't bright enough for me to detect the nature of the surface I was approaching. I ride a lot of country roads and they have a tendency to have loose gravel sections. Some are really loose and deep. My lighting deficiency causes me to limit the duration and direction of night rides. I think with the added power of the hub and the ability to power a more substantial light system, I'd be safer. I don't need to be breaking anything, bike or body.
Thanks for your feedback.