I guess I'll reiterate what I said a couple of years ago when this thread started. Ha ha. It seems entirely likely that the cracking/peeling/curling is a function of the local climate (read humidity). Since I've moved to the utter dryness of California, not a single crack, curl or bend has appeared on any of my Kellogg's cards. I could be wrong, but my layman's opinion says it is all about the humidity.
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