On my 3rd insert now. Always cracks in the same place. Driver side front corner. It never grew longer, but moisture caused the crack to seperate more. It actually looked as though it were beginning to swell up.

As I said, I am on my 3rd one now, and even this one has a crack in it now. I think the underside of the inserts is the problem. Upon looking under it, it has no underside protection like a sealant layer.

Hopefully, these Carbon Werks inserts work out well.