The warping comes from the seam of the 2 major parts not having enough surface material to mate with.
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If you purchase a new set (or have the dealership replace them), you have to separate the painted portion and that black upper portion -- which is still going to cause an issue as the 3M tape won't be enough to secure the 2 pieces together - even if clamped in a vise all night.
For mine, I also noticed that the painted section is so thin, that the heat and cold effect those as well :
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so what I did was mark where there were some possible areas to add some "bump stops" : adjustable with set screws
This was taken prior to backing out the set screw another 3mm for near perfect alignment
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The top ones made very little difference, so I added a set at the white arrow (front and rear) .. I coulda just used the sticky ones, but I wanted to be able to always adjust.
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For the top portion (which nearly everyone complains about the most), that is still a work-in-progress without ripping one apart (and not being able to order a play-test set).
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I have a printed sheet showing how those are to be put together, but am not gonna rip mine apart and ruin them -- I will once I have a replacement ready
I made a set of "ends" that bolt in on the upper part of the hinge and ride up to the top portion shown above. It helps, but another design in my head will be a lot stronger when "slamming" the boxes closed.
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