Hiya Nancy. I also had one slightly bigger pre surgery. My surgeon advised The difference wasn’t big enough to have different size implants. I’ve read on here that sometimes in this case They make the incision on the smaller/higher boob a bit lower, so it has further to drop I presume, as this should help even them out.
Im not sure if I’m surgeron did this as Imi still have my dressings on. But my smaller/higher boobs incision does look slightly lower. I’m still early days 14dpo so yet to see if they will even out.
If you are unsure definitely speak to your surgeon and get him to advise. Assymetry was a big thing for me wanting the ba. So hoping mine evens out xx
