Another product that came out of collaboration Thrym with Chris Costa of Costa Ludus... "The SwitchBack dials your full-size SureFire Flashlight up to 11 adding a pocket clip, and optimizing ergonomics for searching and shooting. After taking a look at all the options available for flashlights and weapon-lights we realized that there was a big disconnect: Weapon-lights are great for shooting, but they create a lot of liability when searching.