Here's a suggestion. I'm currently making my brother in law a D9P like pattern. But, I wanted all the large "fish" blocks to be the same upright direction, a typical D9P rotates the large block. I cut 8 1/2 squares out of the pattern, 8 1/2 x 2 1/2 sashing and 2 1/2 x 2 1/2 corner stones. It's working up very quick. The upper left block corner stone is lower right, the upper right block corner stone is upper right, the lower left cornerstone is lower left and the lower right cornerstone is upper left.