I always go to pattern review once I decied on a pattern, to see what issues if any, my fellow sewers had with the pattern. No one mentioned the wide, neckline.
First of all I had to figure out how to do an FBA with this pattern. I always have to do an FBA and address gaping necklines lines. I knew the neck line would be huge. But I loved that is was sort of boat neck.
I did my muslin fit and found the neck line was not only huge, but the center back waist of the bodice dropped like I had on a tuxedo. In order to fix this, I shortened it about an inch in the center and graded down to the sides. I reduced the neckline by an inch on the bodice front and back. I also graded that down so, that I didn't lose any room for the girls. I must have cut size a 20. My motto is make it larger you can always take in but you cant take it out.