I am designing a quilt with a large but busy border. I see that I can use this technique as the center of the quilt. I plan to place several (6, 9 or 12 blocks) sitiched together in the center of the quilt. Then I feel that the surrounding area needs to be simplified using pinwheels on one color before placing the busy border on the quilt.
Thanks for the lesson. You may have just saved my quilt.