I'll certainly try your method, appreciate your post. I've been using TFTCentral's color profile and settings forever.
Got this monitor and struggled to make it look as good as my two 4k TVs (albeit one is a $3000 Full Array Local Dimming HDR display). Had someone tell me to do this and didn't think it would work but now my monitor looks like looking through a windows into reality. Pictures and home video I've taken myself look exactly like being there.
Step one, make sure you're viewing this image unscaled (zooming in a browser or Windows 10 desktop and app scaling). I just used my photo editing software to where I have it configured to ignore Windows 10 scaling (or I guess you could just have scaling off)
Using the GameVisual Racing Mode turn your brightness and contrast to 100%. Don't get nervous, just do it.
Now go to Color Temp > User Mode and start adjusting each color down until each block blends into the one next to it so that it's as close to being the same shade, brightness, etc. making as close to as possible one solid block out of the two separate ones side-by-side. Sitting back a few feet and slightly squinting your eyes will help a ton.
Once you've done that and find that you have to lighten or darken the picture just a little bit use the RGB adjustments and not the brightness or contrast but make sure you adjust each, red, blue, and green evenly up or down (you shouldn't have to adjust much from the step above.)
That's it! Doesn't matter if I'm viewing live TV, games, or photos and home videos everything now falls into place. Skin tones are spot on, there's no white or black crush (test images below) and everything is vibrant and clear. My TV's where so much more simple to setup and I don't know why this monitor was giving such grief. The person who told me to do the above procedure said that they're a photographer with monitor calibration equipment and the simple steps above gets pretty much the same end result as using actual calibration hardware.
Some images below for testing black/white levels/crush...
On my display I can make out every step in the above images and in the first image you should be able to see two faint circles on the brightest and darkest bands in the grey scale. Oh, I forgot to add to make sure that the monitor has been warmed up for at least 30 minutes prior to setting it up. I also find setting the Overdrive to Normal to be the sweet spot for this display.
I don't think you can use someone else's setting since each monitor will vary at least slightly (as you can see from peoples posts who's bought three of these for multi-monitor widescreen and each one looks a little different) but here's my personal setting for this monitor just in case. The sticker on the bottom of my monitor says October 2017 so I guess that's the manufacturing date? Anyway, here's my settings...
Monitor setting: GameVisual=Racing mode
Color Temp: User Mode R57 G36 B66
Image: Overdrive Normal
As you can see, out of the box my monitor was VERY green as green had to be turned down the most! Don't ask me how using that first image and procedure above works, I don't know, but it did. When I can look at pictures and video I've personally taken and they look EXACTLY like being there in person with no black or white crush and all test images checked out I know it's correct and works.
BTW, this monitor rocks! (now that I have it looking good.) Can't believe I was trying to play twitch shooters and racing games online on a 60hz panel before, LOL. What a difference in control and smoothness!!