I'm going to buy a new light. Getting the Bravo or Charlie, but I can't figure out which. I have a two cell 220 lumen that I use daily for work and acts as double duty on my 10.3in SBR. I would like a bit of input as which light to get for perm mounting on the SBR. Weight is no issue or is room on the handgaurd. I live in Alaska and now it's dark 18hrs a day. A good light is a must, and in the summer hiking even better. Which one should I choose? Regular tail cap -push on release off. I have a tape switch I can use if needed.