Originally Posted by
Peckish
Kitsie has a good point. If you don't prewash/preshrink fabric and use steam or starch, your fabrics could be shrinking.
I was thinking the same thing. If you don't prewash, those tiny pieces could be shrinking when you press them. Personally, I find if the thread is the same in the top and bottom I usually don't have a problem. Maybe if we knew what pattern you were making it would help.