Just got back from 15 days of riding in Baja with my new HDB handgaurds and mirrors on my 950 Adventure "test bike" (pictured above). Everything worked flawlessly. I have to admit, I thought that the mirrors wouldn't be very effective on the road sections, but I was completely wrong; I could see behind me very well with unobstructed view, and running at very high speeds in windy conditions, the mirrors didn't move.
I'm even more impressed with them after this trip. Nice stuff!