I really like the idea of having everything I need built into one light and instantly available, which is of course why the Kroma caught my eye. I need a soft red light in situations where I don't want to shine a bright light of ANY colour, and of course the red is to preserve my nightsight. It has another advantage in that you can sometimes leave it on in situations where that wouldn't be a good idea with any other colour. I want blue because, well because it is the opposite of red chromatically and still preserves some nightsight, though not quite as much. Red light can wash out red things like map lines, other red lights, and blood and things, either disguising them or just plain making them invisible- in those situations blue really brings the same things out. I wouldn't be looking for 100 lumen in those two colours so the Gerber recon is pretty good, plus it throws in a green light option as well. But, the more I think about it, the more 'cumbersome' it seems to be carrying 3 different units as I do now. However... it IS a working combo until I come to a decison....