34AA getting 350CC ideal implant...should I increase CC amount to get full C?

Good day! For your guidance, here is a list of generalized breast implant sizing for most patients:
32A to 32C needs about 250-275cc
34A to 34C needs about 300-350cc
36A to 36C needs about 350-400cc 
It is best to find a size in proportion with your whole body. Contact your surgeon and discuss realistic goals and expectations when deciding which implants are the best for you. Best of luck! #RealSelf100

i agree with you. A larger implant is needed to get you to a full C. The best method of getting the size you want is to simply try implants on. By placing a silicone gel implant in your bra and putting on a tight T-shirt you’ll see exactly how you’ll look after surgery. If you like the way the 325 cc implant looks, you’ll need a 350 cc implant to get the same appearance as the implants “play” smaller once they’ve been put in under the muscle. Be certain to express your expectations to your surgeon and be sure he/she understands them.