Does the Sew Easy tool have to be used with the special Sew Easy mat? I tried to use my Sew Easy for the first time with a self-healing mat I had on hand and it ruined the head by dulling down the piercing points.
— reneelr20, WI on Jun 15, 2011

The Sew Easy Piercing Mat is squishy enough that it will allow the Sew Easy tool to pierce the paper, but not ruin it. Other mats are either too squishy or not squishy enough. Hope this helps!