Are they all distinguishable?
My old Z1c made all squares below 7 indistinguishable, which forced me to return it. Really want the Z2, but I don't want the same thing happening.
If possible, can you report the results of any other tests? And is the backlight optimization as noticeable on the Z2 as it was on the Z1, Z1s, and Z1c for me? Thanks.