've found that actually putting gel implants in a bra seems to be able to get the accurate size and probably at least 8% of the patients. The 20% who aren't accurate, about a year a later, usually wish they have gone bigger. I am able to get about 8% happy with my sizing procedure.
Breast Augmentation Sizing Using Gel Sizers
Dr. Richard Glunk explains how the best sizing practice for him has been to use the gel implants in the patient's own bra.