Having seems come apart on a gifted quilt is so embarrassing and frustrating. Ask me how I know? Part of the seem problem, I believe, is mishandling (especially large quilts) quilts when they are wet and not properly removing them from the washer. I always give a card with my quilts with directions for washing and preserving the integrity of the quilt. I am now convinced that no one reads these directions.
When repairing my great granddaughter's quilt, which had open seems, I decided to use a design on my Brothers' machine that is a wavy line. I used this stitch on all of the long seems. It is easier than SITD and it is quite nice. Here is the back of a quilt where I used this stitch.
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