I wonder if you iron the whole sandwich, then quilt does it make your stitches tighter after it's washed? I'm going to have to try this, I love the look of a high loft batt it's so hard to work with and mine always looks baggy. If you can flatten it and it sews like a low loft then puffs back up when it's washed I'll bet it would be perfect. Thanks so much for figureing that out for us.