Now AA Cup, Will a 325cc Give Me a FULL B?

Communication with your plastic surgeon is key - as your surgeon it is our job to guide you to a safe and aesthetic result based upon your individual anatomy.  Your measurements should give your surgeon a range of implant sizes that would be acceptable for your body.  From here you can work with your surgeon to pick the size you like.  My best suggestion is to buy that "full B" bra that you want to fill and recheck your sizing.  The sizing is very similar to the shape and size you will be after surgery.  Be aware that a B bra varies between manufacturer and by band size ie. 32B vs 36B.

The cup size depends on final breast volume, and bra style.  Implant size should be determined by the dimensions of your chest, your pre-existing glandular volume, compliance of your skin envelope, and final desired breast size.  A 325 cc implant may be wide and flat, or narrow and full.  Just knowing the implant volume is not enough information to determine what your final bra cup size will be.