Why can't I make anything that fits. I swear my mock ups are perfect, but the real thing is always too big or too small. I just tried on my new dress for the wedding g, and it's way too small in the bust. And of course it's all curved seams with neatly clipped and trimmed seam allowance. So no room to let it out. And it's a miracle that I was able to fit all the pattern pieces on the fabric to begin with, so no extra fabric. My only option is to let out the zipper and hope the extra bit helps.