We are building a home and picked 6mm Statuario for the kitchen countertops, backsplash and island. After installation , the only visible border is at the undermount sink. After talking to many people, we were wondering if we made the right decision, as now we feel 6mm is too thin and it may break or crack easily. It is installed on a Hardiback base. One problem has been getting the mitered edges just right and already the edge gas cracked twice. So now our question is- do we leave the 6mm as is or do we rip it all out and replace with 12 mm slab? Does anyone have any experience with 6 mm countertops and their ability to last in a kitchen?