Black Optimizer and impact on Vs / Ve
I noticed a weird artifact a couple of times over the past few days and I was finally able to isolate it and obtain it reproducibly. Essentially, if I have a portion of the display showing black, and then I suddenly flash up a white/bright image/window, I can see that the individual pixels start turning on in a random fashion and it was taking ~ 1s for all the pixels to turn on. What this meant is that within that 1 sec, some pixels were still black, and this can be a bit distracting at times, though difficult to spot. If you have an HTPC hooked up to your TV, just set your wallpaper to black and drag a white window around to see what I'm talking about.
It turns out that higher Vs and Ve lowers the time for the pixels to turn on but doesn't completely alleviate the issue. So as a compromise, I went back to the spec level of Ve but I have kept Vs at 197V as it really does help considerably with the red tint.
After I closed the TV back up, it occurred to me that this issue might infact be caused by the black optimizer function. I know that typically, Plasma's need to keep each pixel primed which is why black screens still have some RGB noise to them. I suspected that the Black optimizer was reducing this effect, with the side-effect of it taking a bit longer to fire pixels back up when changing from black to an "on" state.
Sure enough, setting black optimizer to Off resolves this issue. I've decided to stick to the off setting for now. My black level reading goes up from 0.003-0.004fL to 0.005fL, so it isn't too bad.