Sashing help please
I am making a stacked coins quilt with my poorly cut batiks, I have 8 rows and each row is 65 inches long. I would like to add washing between each row to help add some width. It is best to sash the side of each block or can I sash one long piece of fabric? I am concerned about waves and wonkiness with the one long piece but it sure would be quicker !! Oh wise quilters what would be best????