I have a Vera Wang mermaid style gown and for visual interest, I chose a DB malibu blue sash for my waist. The back of the dress has small buttons running down the length of it until it gets to the ruffles. My question, to cut the sash and fix it to the dress just at the button edge or to tie it and let it drape down. My concerns are that the sash will cover the buttons, making them a pointless detail, it will hide the shape of the dress in the back which I assume part of the appeal of the dress is that it conforms to the bride's shape, and finally, that the long sash just doesn't look good on a dress with ruffles. I've always just seen the sashes drape on dresses that are flat. I only am considering it draping now because the seamstress that I'm working with said it looked beautiful like that. Any tips or advice or suggestions?