I had a quilt that was quilted at the minimum amount, every 4 inches. The weight of the quilt when I tried to move it started popping both the block seams and the quilting stitches. I added a lot more quilting and solved the problem totally. Now, I try to not have any areas more than 2 inches without quilting, regardless of what the batting requires. I do use pantographs mostly and they interlace so that there is support everywhere on the quilt to prevent seams popping.