I too am a controlled quilter. I need to know where each fabric is going to lay. Right now I am working on a scrappy tube pieced quilt. I made 5 blocks using four jelly roll strips + background making a total of 50 blocks. So I put one block from each strip in a pile. I have laid 20 blocks on the design wall and getting ready to trim up another 10 blocks. I need the accent colors to be nicely scatter across the quilt.