I tried my gown on yesterday, and I definitely need them to build up the bustline a bit. My gown has a lot of pleating details so they will make it match as much as possible.
It seems they can use the material from the hem, but I have a swatch to find backup fabric just incase. I'm incredibly nervous about this, but they are very confident it will work well.
I'm also REALLY tall so the length of the armholes bother me, and they need to adjust those as well -- yet the back of the straps are too big. Its so strange.
Just trying to keep faith that they will take good care of me!