Several weeks ago, I took another class at The Calico Cat. This one, Tessellating Pinwheels, was taught by Sandy Corbin who lives in California but comes over here twice a year for vacation (and to teach classes).
One of the tips Sandy told us to try was when sewing two pieces right sides together, have the piece that is on the straight of grain on top (under the presser foot). If the stretchier fabric on on the bottom, the feed dogs feed it at a faster rate than the top piece and they will usually fit together easier. What I found was that EVERY SINGLE intersection in this quilt fit exactly without any distortion at all. It was one of those great "AHA!" moments.
The fabric is the Sweet & Sour collection with Connecting Threads. The CT website also had quilt labels available for free download that match their fabric.
Today I gifted this quilt to a coworker who is retiring in a few weeks. She was so surprised and thrilled. Today was a good day.