I went to get the Zero, but the Light Action was the one I could find in red so I got that one, the cro-molly (AKA Cheap). Two days later I went to adjust the float and surprise! You can't adjust the float on the light actions...
From some reviews, I get it that's easier to clip-in/clip-out on the Light Action.
So, anybody out there has tried them both? Can you tell me what I'm missing besides the higher OCP points?