Regarding alignment of the colors - I think I follow the theory of moving in increments of 8 (8 = 1 full pixel). However, with this method wouldn't you have to set each of the 4 corners the same? In other words the top left is adjusted 8 spots the the left, so you would apply the same 8 spots to the left in the other 3 corners, correct? What if the bottom right is fine as far as horizontal adjustment goes, but needs vertical adjustment only. I guess you just have to hope the same adjustment is needed universally and compromise some misalignment in some areas for better alignment in other areas.
Yes that is correct, all corners adjusted the same in the horizontal and/or vertical planes is what I found to bring significant improvement in sharpness/clarity when using the LCD Align feature (which I had to because my misalignment was unbearable to me).
Many cases of misalignment probably include some slight angle in the physical Z plane (i.e. panels slightly too far back or forward) causing the issues we see in the vertical and horizontal.
If that is the case, it is impossible to make the entire image aligned without doing the intersection based adjustments, leading to scaling of the image, which in my case led to a softness/out-of-focus effect on large areas of the image.
That's why I recommend doing the uniform adjustment to better as much of the central image as possible.