My test ride with them was on the famous Warrior Creek trails and with all the twists, turns and berms I knew it was best to be mounted to my helmet. The little flashlight worked great, not necessary the brightest but certainly bright enough. I wouldn't hesitate to race with it but my Magicshine would be my preferred light. The thing about my LED flashlight I like is it's small size and the internal battery. No cords to route or batteries to stash the only drawback was the lack of mounting hardware. I opted for the zip tie route which worked but I went a bit too low and found myself having to ride with my head at a bit of an awkward angle to see further down the trail, once in place I couldn't adjust.
Recently I was looking around for a suitable mount that might work for my flashlight and ran across this site, Twofish. At $6 a piece I ordered a lockblock and a bicycle block hoping one of the two might serve my purpose.