If I'm understanding right -Originally Posted by Renakr
When you sandwiched it, sewed around the edges and turned it right side out - it was okay.
Now I get lost
Was it when you stitched around the EDGES in the ditch that you ended up with a POOF?
Or was it after you Stitch in the Ditch over the entire quilt?
Either way, IF it were ME - I'd take a seam ripper and unsew while watch tv tonight.
THEN Press it a little - make sure it's smooth, remove all stray threads and Pin Pin Pin
Straight pins long the sides and closing pins hand space apart IN the quilt.
Check to make sure there's no puckers
Don't remove pins until you've sewn everything or if the pins are in your way.