Very interesting poll. At tad on the OCD side...
The conclusions are mixed- Without light, looking at the different generations of eink alone, it seems eink Carta is not better.
But when the lights go one, they are more uniform and the background is lighter.
But the text doesn't necessarily have more contrast... so what's the point?
Another conclusion- as in PW1, variations in the same model are great, and its sadly somewhat of a lottery. They rushed it into production for greed. Yet again.
"light shadow effect"- what is that? The blotchiness?