What I have learned from taking Bonnie Hunter's classes, cutting has to be accurate, every piece the same. Seams have to be accurate, every seam the same. The quilt blocks will go together with no problem at all and will go together fast. Some of Bonnie's seam don't match, she doesn't stop and redo. She is very precise in her cutting and seams and will cut slivers off fabric pieces to get them perfect before piecing. The secret is in the details.