Several years ago a fellow quilter and myself made a Storm at Sea Quilt to be raffled at our annual Holiday Fair. We split up the block, each doing one portion. While it did come together well, I learned the valuable lesson that 1/4" on one machine might not be the same 1/4 " on another. If I were to reproduce this quilt today, I would be tempted to PP it for maximum accuracy and ease of putting the top together.