How do you measure to make sure your stencil will go all the way to the end of the quilt. Do you measure border and the stencil and divide to see how many repeats to make to the corner. All help and tips will help me greatly and I really appreciate all of you in your knowledge and wisdom. Want to use a stencil and not sure how to mark it. It doesn't have any restrigration lines or marks. Thanks a bunch .