I can see where cyccommute is coming from in terms of the disassembling issue in regards to the flashlights. I like that a flashlight on a bike can be used as, well, a flashlight. However, I think I'm going to buy one of the Chinese Magicshine knock-offs since they get stellar reviews on Amazon, and I'll back it up with a smaller 18650-powered flashlight for mounting on the helmet. My commute home is rarely more than one hour and much of it is fairly well lighted so I can get away with lower wattage settings for the areas when I'm on a MUP and away from traffic, bumping up to high settings when I'm on the dark sections of the MUP and when I'm out in traffic and want to be seen. I can acquire extra batteries and battery packs later to have for those occasions when I might be out later and might need to switch out batteries. Anyway, thanks for all the input folks.