I have a slight lid warp when my MBP is closed, I have determined the cause of the problem, and that is the mechanism upon which the latch grabs upon. When I peer into the holes (the slot like holes the latch descend into upon closure) I have notice that one side of the mechanism is clearly uneven with the other one, meaning one side is closer to the top of the macbooks uppercase causing one latch to grab further down into the macbook. This leaves one side further from full closure then the other, which in turn causes the lid to rest in a warped looking manner. I also believe that this is the primary cause of severe lid warping. Of course it takes awhile for the lid waring to fully develop.Take into consideration that this is mostly speculation combined with educated guess, it is not like I did a scientific study on the subject. I was browsing a website which had a macbook pro factory service manual in a PDF form, and they mentioned a "adjustments manual" and said to refer to it for latch and latch mechanism adjustments, for some reason I could not find this chapter in said PDF. Now I am wondering if this latch mechanism is adjustable, it is obviously accessible by removing the uppercase. I do not happen to have a 00 philips handy to open it with so I am wondering if anyone has any experience with this particular part. Please let me know if you have experience with this or if you could point me to the adjustments section of the MBP service manual. Any help is greatly appreciated.