I re-assembled a T60 last night and replaced a display panel since it was cracked.
Since then, I've noticed that it isn't as strong as it should be, even though I followed the Lenovo hardware guide.
Here's a video comparing two nearly identical T60s with each other. (Sorry about recording it vertically)
The one I'm referring to is on the right. It warps much easier than the one on the left, which is manufacturer assembled.
I did leave out these:
which I don't know where they go since they aren't listed on the guide, but could they possibly have an impact on what's happening?