There's also this option, direct mount using large-diameter O-rings or rubber bands through the helmet vents:
Mounting directly to the center rib is probably your best bet. On my helmet, side mount also worked OK.
As for how it worked... it's quite lightweight, waterproof and reliable. Trying to switch it from low range to Turbo while riding would require using both hands, so that's a downside if you intend to switch back & forth. I just ran mine on Turbo all the time. The throw (long-range illumination) could be better, but for a pocket flashlight, it is what it is.
Last edited by mechBgon; 11-02-08 at 03:46 PM.