I just bought a new Nite Ize case to hold my Nextel i560 and it looks like it can also hold a small flashlight. I am trying to decide between the Fenix L0D CE and the L1D CE. Can anyone give me some thoughts on how to choose one over the other? Is it simply the obvious issues of: size, brightness, and runtimes? Or are there any other issues that I ought to consider?