I too can confirm that running LCD tester does not show any signs of flickering... All the colors/greys are flicker free.
Edit: is it just me or does the lcd tester shows signs of screen/color banding ? i also notice this in Sense itself sometimes.
I do mean real color banding like you can see every transition in a gradient.
HTC One X (White/H23 Taiwan) running Renovated Final 1.1 @ NCX v13c kernel
HTC HD2 (sold)
Sony Ericsson w810i still running strong after all those years
with a standby time of 2 weeks xD