I got a replacement TB 13" today.
Old screen was an A033, new screen still an A033.
The old screen was horrible in terms of a yellow patch (see two "tree patches in the middle lower of the screen), new screen is what I would consider perfect considering today's IPS technology.
Old screen:
![]()
New screen:
![]()
The camera picks up a yellow band across the width of the screen at the top and the bottom. I'm fairly certain this is simply down to viewing angle, and it is not noticeable in everyday use. The yellow patch on my old screen was immediately visible with the naked eye, so off it went to be returned.
Interestingly, even though both screens are A033, my i1 Display Pro colourimeter suggests the panels are different. The old screen had a max. brightness of 600 cd/m2 with a native white point of 6700 K, the new screen has a max brightness of 570 cd/m2 with a native white point of 6900 K (both measured in the middle of the screen). So there are significant differences even within the same panel type ("A033").
Confirms what I suspected and have seen, variations from different model# may not be as relevant as panel lottery individually.
Your bottom pic looks like a keeper !