Upon buying my baby a year ago, thanks to the wisdom of this forum, one of the first things I did was to tether my mirrors. A couple months ago when I was in the middle lane of the X bronx distress way on a beautiful, traffic packed Sunday, I hit a crater which rattled my teeth and knocked both mirrors off the supports. As they dangled from the tethers I was thinking how lucky I was that I had read the posts and saved my mirrors. I first thought about slamming them back into place - not a good idea while traveling at 65 on a busy highway. Next I figured I'd just pull over and put them back - great idea except I had NO rearview exposure and the breakdown lane was 4' wide and as Josey Wales said "dying ain't much of a livin'". Hit the next crater and the left side tether broke (shame on me) and I still couldn't see behind me. Well, finally got over, attached the right side and headed home. Reflecting on that episode it hit me - wow that took some time, that saving a few hundred dollars and the anxiety of the people behind me as the mirror bounced down the road paled in comparison to the fact I had lost all rear visibility. Yipes I thought, I could have been killed. So I ask you, what is the down side of putting a screw through the air intake of the mirror into the cowl to keep the damn thing on the bike? Won't see it so the asthetics will be fine, won't pop off when hitting a bump, might break when the baby goes to sleep instead of coming off.