Can we avoid the yellow, I guess I might have worded that incorrect, I meant against yellow in my colour expectation. I wonder if it is too late to edit that.. try a red?
I think this one is great - entry #10. I wish that the top of the Z was separated from the rest of the C in order to create more of a sense that the Z is complete. To my eye, it just looks like there's a "less than" sign inserted into the C at this point...
I would like to see the top of the C slightly separated from the rest of the C, and/or see it change color from the black C to the red Z. Of course that would not come across nearly as clean, so maybe that wouldn't be wise, but I think this is one of the best logos, if only the Z wasn't so <
Maybe link the Z and the C so it's more like one continuous shape.... not sure... but this is probably at the top of my list.