I cut my complete lines of fabric into Sample Slices 5"x 9 1/2". Rectangles are such a great shape and this size shows off so much more of the fabric than 5" charm squares.
Amy Butler's Soul Blossoms is 33 pieces. I figured that 2 sets should be good for one of the Slice and Spacer patterns. I chose PERFECT MOMENT to get some length as well as airiness to the prints.
This may be a new card someday--it would work nicely with a Layer Cake.
Meanwhile, here are the altered measurements for this one. Fabric for the Spacers and Row Sashing--1 1/2 yd. Cut the Spacers 1 1/2" wide. To offset the blocks, cut 2 3/4" off the right end of the odd rows, 2 3/4" off the left end of the even rows. The top finishes 58"x 63".