I hadn't gotten a fill in awhile so I was kind of nervous! I wasn't sure if I liked the size of my Foobs or not and my doctor explained to me that going a little bigger with the expanders would help make my exchange surgery easier and it would help decrease the likelihood of rippling. Because I was on the fence about size, going a little bigger would be the best option for me because when you swap out the expanders for implants, the implants generally end up being smaller than your expanders. I am SO much happier with the size and the shape is even better too!!