I have done some comparison beamshots with the standard 2D Mag LED and others (KD C8, Palight R5, etc. . . ). See my original beamshot thread and compare against my newer beamshot thread. The standard Mag LED is too throwy with a very very narrow beam. Spill is very very dim - not a very useful "general purpose" light to me. I did use it underground last week (new thread to come) and took photos comparing it's use to other lights. My LED Maglite is the latest version (3rd generation of LED Maglite I think). An XP-G in a Maglite is far far better.
-Garry