Why is my success rate so low with laptop digitizers?

I’ve repaired literally thousands of laptops in the past couple years. I don’t bat an eye at most things anymore, but I still run into issues with laptops that have a separate glass digitizer with its own control board. The cable almost always splits into two and you have to line it up with both connectors on the control board. Don’t expect them to always line up perfectly which makes it a pain to get connected because the low amount of flex means you really need to insert both parts at the same time.

Whatever, that’s a minor frustration that I can deal with.

The bigger problem is that these repairs almost never work correctly with the first digitizer. They will often have dead zones, or issues with ghost touch. I would assume an issue with the touch controller itself except that each digitizer will have unique problems (ie one had a dead zone in the the top left, and the next one in the bottom right). So this means that either I’m somehow damaging digitizers without knowing it, or there is a seriously low yield on them. Does anyone else have this issue? Are there any hazards I should be aware of, like them being super sensitive to ESD?

Here is an image of the types of digitizer I’m referring to.