It is easy to gouge the edge of your Hearts and More or Leaves Galore templates when you are cutting around the inside curves. The secret to cutting the inside curves is to use a sharp 28mm rotary cutter and blade. There are times when I still nick the edge of my template with my blade, and cut a sliver from the edge of the acrylic. This sliver will catch your blade every time you try to cut around that spot. If you find you have damaged the edge of your template, just sand out that spot with a bit of fine sandpaper or an emery board. I keep a soft nail file in my tool kit just for this purpose. Get other tips and tricks on my website under the instructions tab.