At Tumbl Trak we don't Slash corners. We only use the top components for our mats. Our vinyl is 18 oz. knife-coated which has a bolstered woven base fabric to offer the maximum tearing energy, putting on energy and peeling energy -- how professional gymnastics mats ought to be designed. https://simonrjzom.ivasdesign.com/48143580/the-2-minute-rule-for-tumble-track