When I first tried the dress on after it was finished, I thought that the back neckline was still gaping more than it should. I threw the dress in the wash/dryer, ironed, hung it up, and forgot about it. When I put it on Easter morning, the gaping issue wasn't an issue anymore.
The Nitty Gritty Details: Lisette Passport Dress, Simplicity 2209, size 12 with a 1/4 inch added to each side seam of the bodice and no other modifications. I decided to not line the bodice of the dress as I wanted to do it out of the same fabric and didn't have quite enough left. It's a quick sew, I made it in an afternoon. Highly Recommended!