I have never pressed my seams open when quilting. I did minimum quilting on a quilt with a lot of seams in the piecing. It was a king size quilt. Just trying to move it popped seams. I went back in and made sure there were no areas larger than 2 inches open with no quilting. No more popping. If what you are quilting is a baby quilt, then there is no weight and there shouldn't be any seams popping. Even a lap quilt wouldn't need that much quilting, but heavier quilts do. I use Warm & Natural mostly and I think the minimum quilting is 12 inches apart. That is way too big an area and even though the batting shouldn't shift, everything else on the pieced top could.