Just because a girl is the same size pre-op doesn’t mean we get the same size implants, every girl is different, and made differently, so one girl with 32a can only have 260’s because her skin isn’t elastic enough, or her bone/muscle structure won’t allow a bigger implant, whereas a different girl with 32a can have 420’s because of different reasons.
Some surgeons order a few sizes in, so you don’t have to pay for each implant, just the one set used (during surgery the surgeon uses an empty implant and fills it with saline to make sure what size will work best) so implants aren’t wasted.
Hope this helps hun xx