It looks like you are using an ad blocker. That's okay. Who doesn't? But without advertising revenue, we can't keep making this site awesome. Click the link below for instructions on disabling adblock.
I've personally never owned a pair that have top sheets that crack. These are 06-07 Scratch BC WRS. I've tried to epoxy that crap already. The crack does go deeper than just a superficial layer. I think those affected portions will eventually fall off. Maybe a warranty? seems like factory error, because I don't know what I could have done to cause that to happen.