I have both the Minimus and Maximus. I like the lighter weight of the Minimus, but really like the rechargeable battery (and significantly greater output) of the Maximus. I don't use it for anything particularly high-speed—mostly detailing the car after sundown. I use a Black Diamond for running, and while that's a decent light for that niche purpose, its switchology really makes me appreciate the simplicity of the rotary switch on the SureFires.