I'm having some sizing issues with Fifi and am not quite sure how to get to "just right." For bust size, I need knit the medium, which will give me 4 inches of negative ease. However, the neckline for the medium is a 140 cast on and will put Fifi off my shoulders, which I don't want. I am uncertain whether to cast on and follow the directions for the small, upsizing it to get to medium, or to cast on and follow the directions for the large while downsizing it to get to medium. Has anyone else had this problem and how did you deal with it?