I have not use the mylar templets, so can't give advise on them. Some people swear by them. Nor have I tried the freezer paper method, which I know a lot of people use. You can also purchase precut papers. I'm cheap! so I just print out the hexagon's on scrap paper, and cut them out. I can usually reuse the papers 3 to 5 times. Have fun with your flower garden quilt, which ever method you use.