I am working on a GFG also and using card stock for the templates. When I do the first basting of the fabric around the card stock temp. I just fold over the edges and just catch the fabric on the backside of the template at the corners and put a couple of stitches at each corner. At the last corner I continue to the first one and take an extra stitch to help hold them all in place. Does that make sense? No going thru card stock. BTW Love your colors on the one u showed!