Snooze2978....I've always been afraid of those curves too. But the Cut Rite templates have little area's that you mark with a pencil and then go back and lightly snip the fabric on the mark. This allows the curve to stretch a bit and then flows into the opposite curve. I loved doing the 6 inch so much that I went back and ordered the 4 inch finished set. To me this was a lot easier than doing a log cabin quilt.