So I chose the custme sizing and measured how the diagram said. Excellent work! I'm very pleased and  hope I have other occasions to use this seller. I am highly recomending their dresses and the quality is fantastic. I was very pleased with how mine fit.

One thing to note: shoulder to floor, they add 2.5 inches to your measurement for heels. So if your are planning on no shoes or flats, take off 2.5 inches for a sweep length.