Personal physical examination is always going to trump even the best and most reasoned online answer from someone who has not examined you, so I will concentrate on a few basic facts that you can consider.800cc (cohesive silicone gel) implants are the largest implants presently available in the USA, though saline implants can be filled to even larger amounts for the appropriate patient whose anatomy allows. With implants of this size, your surgeon should also make your implant pockets somewhat higher than the final desired position (and the incisions should reflect this as well and NOT be in your present creases, but slightly lower, where the NEW crease positions will be when gravity does its inevitable thing and your implants drop.)There is no brassiere in existence that can prevent gravity from working, and implants will ALWAYS drop, with two exceptions--textured implants that adhere properly, and capsular contracture (CC), which yields the hard, Baywatch coconuts that cannot move, even with gravity!So let's assume your surgeon uses precise technique, meticulous hemostasis, and perhaps the Keller Funnel and Betadine or Adams formula irrigation, all designed to minimize the risk of CC, and your anatomy has the capacity for 800cc implants. It looks as if it does, but there is the need for a personal examination again!Since your surgeon has reduced the CC risk as much as possible, and assuming you have chosen smooth implants because they move more naturally than adherent textured implants, you can pretty much be assured that those 800cc implants will drop over the 6-12 months your breasts are healing (again, regardless of bra use). That means you will develop new lower creases on each side, a longer crease to areola distance, more fullness in the lower pole of still plenty-full breasts, and therefore may well NOT "need" a lift.This also presumes that you are not seeking the high, round, artificial Baywatch coconut look (which is the province of a good push-up bra, or if you develop high, hard, Baywatch coconuts from CC)!Others have addressed another issue as well, but let me be more blunt, and hopefully, clear! Breast lift flaps--particularly in the presence of such large implants-- may have compromised circulation leading to catastrophic skin loss, exposure of implants, and loss of any cosmetic result. The way some surgeons may choose to avoid these terrible concerns--associated with "full" breast lifts or (Wise) anchor pattern breast lifts--would be to recommend a modified lift like a vertical or periareolar lift. The former will have excessive tension just underneath the areolas, and has a tremendous wound breakdown possibility, and a periareolar "lift" does not lift much at all, sometimes leaves scalloped or "pleated" scars, and flattens the breasts. So I would suggest "waiting" on the lift for now, In fact, STRONGLY suggest!Remember, a lift can always be added in a (much) safer later operation if needed or desired, and avoids the healing issues, while allowing you to see how the less-costly and safe(r) breast augmentation-only operation does on its own. Just know that you will start out looking unsatisfactorily "snoopy dog" in appearance, and will need be patient with gravity. It (gravity) ignores no one! Best wishes! Dr. Tholen