He He, you wanna see some sparks fly??? You chose the right topic!!!
I have them and am quite happy to use them, in fact they have saved my heads a couple times in the early years when I was coming to terms with the Airheads width. I have asked extensively over the last couple years many people who have been riding Beemers for years, and some of them are hard riders. They have never experienced, or heard of happening, the sort of problems reported in the article written by Duane, namely statistically larger likelihood of hi siding caused by them. I've even talked to a guy who slid with his bike for quite a distance and is convinced they saved his leg.
Hi siding happens, but apparently not with any greater frequency on Beemers, or indeed any bike, so equipped, than normal. I'm not sure if it is just the luck of the draw, or how or where the perception that they do cause hi sides comes from, but you can hi side any bike, any time.............or not.
Bring on the cannons...................sorry, semi automatics!!
Bill..........................;-)